ADTRAN Network Card 1xN User Manual

Section 61190860L1-5B  
Issue 2, January 2002  
CLEI Code: NCM5NTDD_ _  
1xN Remote Protection Switch  
Pro-Cap  
Installation and Maintenance  
CONTENTS  
1. GENERAL ................................................................1  
2. INSTALLATION .......................................................3  
3. CONFIGURATION ...................................................4  
4. OPERATIONAL DESCRIPTION .............................5  
5. NORMAL OPERATION ...........................................6  
6. PROTECT OPERATION...........................................6  
7. PROTECTION SWITCH ...........................................8  
8. SWITCHBACK ........................................................10  
9. AUTO-PROTECT OPERATION ............................11  
10. SPECIFICATIONS ..................................................12  
11. MAINTENANCE .....................................................12  
12. WARRANTY AND CUSTOMER SERVICE.........12  
FIGURES  
Figure 1. 1xN Pro-Cap....................................................1  
Figure 2. SCIM Card Elements ......................................4  
Figure 3. Normal Operation ...........................................6  
Figure 4. Arming Operation ...........................................8  
Figure 5. Protect Operation ..........................................10  
Figure 6. Switchover.....................................................10  
Figure 7. Total Access 3000 Auto-protect Switching ..11  
TABLES  
Figure 1. 1xN Pro-Cap  
Table 1.  
Table 2.  
Table 3.  
Table 4.  
Table 5.  
Table 6.  
Table 7.  
Table 8.  
Table 9.  
LED Indication................................................3  
In-Band Commmands .....................................7  
Out-Of-Band Commands ................................7  
In-Band Enable/Disable Protocol ...................8  
In-Band Protection Switch Protocol ...............9  
Out-Of-Band Enable/Disable Protocol ...........9  
Out-Of-Band Protection Switch Protocol .......9  
In-Band Protection Release Protocol ............11  
Out-Of-Band Protection Release Protocol ...11  
Pro-Cap can be used in conjunction with the  
ADTRAN Total Access® 3000 Carrier Class  
Broadband Multiservice Access  
Platform, or any standard Office Repeater Bay (ORB)  
with T1 or HDSL to provide a Protection Switching  
Network Interface (PSNI).  
The Pro-Cap housing accepts eight T200 type circuit  
cards or four dual slot T400 DS-1, HDSL, or HDSL2  
circuit cards. The unit is a wall mounted assembly  
that provides convenient access to CPE connections.  
The assembly incorporates a circuit board backplane  
that provides a choice of amphenol connector or  
wire-wrap pins for facility wiring hook-up.  
Table 10. Specifications ................................................12  
1. GENERAL  
This practice provides installation and operational  
procedures for the ADTRANRemote 1xN Pro-Cap  
protection switch multi-mount housing (P/N  
1190860L1). See Figure 1. Pro-Cap initiates remote  
switching of a DS1 or HDSL circuit to a standby line  
following detection of a fault. This eliminates the  
immediate need for a vehicle dispatch to investigate  
trouble or provide standby service. The shelf also  
accommodates DDS and ISDN technologies but  
without protection.  
The Pro-Cap accepts -48 VDC local power or a  
modular power supply that inserts into the POWER  
slot at the far right of the shelf. The power supply  
module includes an AC power cord that plugs into a  
standard 110 VAC grounded outlet.  
The Switch Customer Interface Module (SCIM) can  
mount to either the left or right side of the Pro-Cap  
housing to facilitate access to all CPE connections.  
Trademarks: Any brand names and product names included in this document are  
trademarks, registered trademarks, or trade names of their respective holders.  
61190860L1-5B  
1
 
Documentation associated with the listed cards  
provides information on implementing the auto-protect  
function.  
3. The shelf assembly lifts away from the mounting-  
plate by disengaging the chassis tabs from the  
mounting-plate support hooks.  
4. Using the mounting-plate as a template, position  
the mounting-plate at the desired location and  
mark four pilot holes. Ensure the unit is level and  
that cable plugs will reach their designated  
sockets.  
LED Indication  
Table 1 describes LED indication.  
• All LEDs OFF indicates no power to the SCIM.  
• All LEDs flashing red indicates the protect card is  
disabled and SCIM power is local -48 VDC.  
5. Using an appropriate bit, drill the four pilot holes.  
6. Align the mounting-plate to the pilot holes and  
attach to the wall with appropriate fasteners.  
2. INSTALLATION  
7. Reassemble the unit by reversing steps  
1 through 3.  
C A U T I O N !  
SUBJECT TO ELECTROSTATIC DAMAGE  
OR DECREASE IN RELIABILITY.  
HANDLING PRECAUTIONS REQUIRED.  
Cable Connections  
Frame Ground  
After unpacking the unit inspect it for damage. If  
damage is noted, file a claim with the carrier then  
notify ADTRAN. Refer to Warranty and Customer  
Service.  
Both the shelf and SCIM have separate ground  
connections. Each must be connected to a known  
approved ground location. Verify metal to metal  
contact on all connections and ensure ground circuit  
continuity.  
Mounting Procedure  
The 1xN Pro-Cap installs at the remote location using  
the following procedure:  
The shelf has various openings for wire route options  
along with tie-wrap anchor points and extrusions for  
securing cables and connectors.  
NOTE  
All component fasteners are spring-loaded,  
captured thumb screws.  
Specific wiring arrangements are customer developed.  
CAUTION  
Transmit and receive loops to both facility and  
CPE have two connection schemes. Only one  
connection method is to be used, not both.  
1. Remove the housing from the shelf by unscrewing  
the two thumb screws on the side of the housing.  
The housing pulls out and away from the shelf.  
2. Remove the shelf from the mounting-plate by  
unscrewing the thumb screw at the top center of  
the shelf bay. It is not necessary to remove the  
SCIM assembly unless its position is to be  
reversed to the other side of the shelf.  
Facility Side  
Amphenol Connection – The to-facility and  
from-facility amphenols can be either left-side or  
right-side oriented.  
Table 1. LED Indication  
Slot LED  
OFF  
Flash Green  
Solid Green  
Protect  
Flash Red  
Protect Card  
Solid Red  
Flash Red/Green  
Protect  
Deselected  
Request to  
Protect Enable  
In Protect  
Mode*  
1 - 7  
N/A  
Enabled  
Disabled**  
No Network  
Signal  
Protect  
Activated  
Protect In  
Standby  
Protect Card  
Disabled**  
8 PROT  
FAIL  
N/A  
Protect Card Armed  
N/A  
Protect  
Operational  
Protect Card  
Disabled**  
N/A  
N/A  
Protect Failure  
* Only one module at a time in slots 1 through 7 can be in Protect Mode.  
** Protect switch S3 OFF.  
61190860L1-5B  
Section 61190860L1-5, Issue 2  
3
 
Wire-Wrap – The to-facility and from-facility  
wire-wraps are an alternate method in lieu of the  
amphenol connections.  
Shelf Cards  
Channel cards are individually configured to meet  
network or customer requirements. Certain cards only  
receive power from network span power. These cards  
do not have pin contacts for shelf power.  
Customer Side  
Amphenol Connection – The to-CPE and from-CPE  
amphenols should be left-side oriented to prevent  
SCIM panel removal interference after amphenol  
installation.  
CAUTION  
Itmustbedeterminedifchannelcardscanreceive  
both span power and shelf power. Some cards  
may malfunction under that condition.  
RJ-48C – These modular jacks are an alternate method  
in lieu of the amphenol connections.  
SCIM Controller Card  
-48 VDC Terminal  
Option switches on the SCIM controller circuit board  
are located behind an access panel. Remove the  
housing from the shelf to gain access to the panel’s  
thumb screw fastener (refer to Step 1 of the Mounting  
Procedure). See Figure 2 for SCIM Card connections,  
terminals, indication, and switches.  
Local DC power connects to terminal strip TB1 at the  
bottom of the shelf backplane. This power source is  
distributed across the backplane to slots 1 through 8  
and can jumper to the SCIM TB1 to power the  
controller card.  
NOTE  
BoththeshelfbackplaneandtheSCIMcardeach  
haveaTB1terminalstrip. Thispracticeidentifies  
the specific TB1 when referenced in the text.  
3. CONFIGURATION  
Shelf  
There are no configuration selections on the shelf  
backplane. If -48 VDC is connected to TB1 on the  
shelf card there is no need for the power card unless  
for a spare power source.  
Power Card  
The PWR card has an AC power cord that inserts into  
a standard 110 volt AC grounded wall outlet. When  
AC power is in use, local power should not be  
connected to TB1 on the shelf card. The PWR card  
also applies power to the same TB1 shelf terminals,  
which in turn can be jumpered to TB1 on the SCIM  
card.  
Protect Card  
Figure 2. SCIM Card Elements  
The protect card can receive power from either the  
network (span) or from the backplane (-48 VDC). To  
initiate the protect feature the card in slot 8 must  
support the technology of the channel cards that are  
enabled for protection. The protect card should also  
have span power capability to power the SCIM should  
that configuration be used.  
4
Section 61190860L1-5, Issue 2  
61190860L1-5B  
 
Span Power Switch S1  
This switch selects between span power or local  
power.  
OFF – The standby module in slot 8 is cut through  
and detection circuitry disabled. If the  
standby card was supplying span power to  
the SCIM, all the LEDs will be OFF. If the  
SCIM was receiving local -48 VDC power,  
all the LEDs will flash red.  
SPAN – The SCIM receives power from the  
protect card in slot 8.  
LOCAL – The SCIM receives power from local  
-48 VDC to terminal strip TB1 on the  
SCIM card.  
NOTE  
Theprotectcardinslot8shouldhavespanpower  
capability either permanent or as an enabled  
option.  
NOTE  
Local -48 VDC can be jumpered from the shelf  
TB1 terminals.  
Local Power  
Terminal strip TB1 on the SCIM card accepts local -48  
VDC power. Installation requires that wiring (14 to 26  
AWG) be routed from the back of the SCIM housing.  
This arrangement is an alternative to span power the  
SCIM receives from the protect card. Slide switch S1  
selects between span power or the -48 VDC supply.  
SCIM frame ground is attained through a separate  
ground terminal.  
Protection Select/Reset Switch S2  
The first function of this pushbutton switch enables or  
disables standby protection for individual slots (1  
through 7). Protection for selected slots can be  
disabled if cards of a different technology occupy  
those slots, or to meet SLA agreements. Protection is  
selected using the following procedure:  
1. Depress S2 for 5 seconds. Slot 1 LED will start to  
flash green; all other LEDs will be OFF. Release  
S2.  
4. OPERATIONAL DESCRIPTION  
The SCIM card is a component of the Pro-Cap  
assembly that provides T1 drops to the customer  
through an RJ-48C or Amphenol connector. The T1  
1x7 Controller Card is an enhanced SCIM that also  
performs manual 1x7 protection switching on T1  
(HDSL) services. The controller card is designed to  
function as a manual protection switch and does not  
have the capability to address an automatic protection  
switch function.  
2. To enable protection for slot 1, press and release  
S2. Slot 1 LED will turn solid green and the LED  
for slot 2 will begin to flash.  
3. To pass over a slot that is not to be protect  
enabled, wait several seconds while that slot’s  
LED is flashing. The LED turns OFF and the next  
LED begins to flash green.  
4. Continue this process until the LEDs for all slots  
designated for protection are ON.  
T1 protection switching is accomplished through two  
network elements:  
The protect configuration, once established, is  
maintained in memory.  
• Central Office Element (COE)  
• Remote Element (RE).  
The second function of this switch is to reset the  
protect configuration in the event the protect card was  
enabled to temporarily replace a malfunctioning shelf  
card. After the system is returned to normal,  
depressing S2 for a minimum 5 seconds resets the  
protect configuration stored in memory. Immediately  
release the pushbutton when the LEDs return to the  
protect configuration.  
The COE functions as the master of the protection  
switching operation by initiating all commands. The  
RE will only respond to the COE commands. The  
controller card and a Network Interface Unit (NIU)  
represent the RE. A Digital Test Access Unit (DTAU),  
a Digital Cross-connect, or a T1 Test Set can represent  
the COE.  
The controller card uses the card in slot 8 of the  
Pro-Cap mounting as the standby service. The NIU in  
slot 8 will provide the appropriate physical layer  
interface to the network (i.e. HDSL2, HDSL, or T1  
AMI) and 4-Wire T1 AMI physical layer interface to  
Protect Switch S3  
This switch controls the protect feature.  
ON – All standby and protect functions are active.  
61190860L1-5B  
Section 61190860L1-5, Issue 2  
5
 
the controller card. The controller card will  
continuously monitor the network receive T1  
transmission service in slot 8 (i.e. standby line) for  
commands. Upon the receipt of these commands, the  
controller card will initiate the T1 service switchover  
from the requested line (1 through 7) to the standby  
line. The controller card when optioned for protect  
will conduct the following:  
Normal Receive Path  
The receive path is non-protected and transformer  
coupled between the network and the customer. The  
receive path is monitored for in-band or ESF  
bit-patterned datalink messages. The receive path  
toward the network will be terminated with a 100 ohm  
resistor. This 100 ohm termination increases the  
reliability of T1 signal recovery and minimizes  
crosstalk. The receive path toward the customer will  
be an open termination.  
1. Monitor the incoming network signal to  
determine if the protect line is operational. If the  
line is operational the FAIL LED will be OFF. If Normal Transmit Path  
no signal is present, the slot 8 PROT LED will be The transmit path is non-protected and transformer  
OFF and the FAIL LED will be ON.  
coupled between the network and the customer.  
2. Provide a loopback to the network as long as a  
transmit signal is not present from the CPE. If a  
signal is placed on the slot 8 CPE transmit to the  
network, the loopback will be released and  
normal transmission to and from the network can  
occur. Upon removal of the transmit signal,  
loopback will be activated.  
Passive Mode  
The controller card can be configured to establish a  
passive transmission path by detecting a T1 signal from  
the customer. The transition from normal to passive  
mode will require the loopback to the network removed  
and the receive path to the customer to be reconnected.  
Passive Mode to Normal Operation  
The controller card will return to normal operation by  
detection of a loss-of-signal from the customer.  
The SCIM controller card can be locally or remotely  
provisioned to either enable or disable slot-switching  
capability. If a slot is protect enabled, when a switch  
request for that slot is received on the protect channel,  
the slot will switch. If the slot is protect disabled, it  
cannot be switched.  
6. PROTECT OPERATION  
Protect operation is defined as the transport of data  
from the network to the customer using a standby line  
connected to Slot 8. Communication between the COE  
and RE will be based upon in-band or out-of-band  
(ESF datalink) commands. Upon detection of a fault  
on an active line, the controller card will not  
5. NORMAL OPERATION  
Data is transported from the network to the customer  
through an assigned slot (slot 1 through slot 7). The  
standby line is transported through slot 8  
(see Figure 3).  
automatically switch the customer’s data onto the  
standby line. A remote provisioning command must be  
used to switch the customer’s data onto the standby  
line. Once the customer’s data is on the standby line,  
Figure 3. Normal Operation  
6
Section 61190860L1-5, Issue 2  
61190860L1-5B  
 
this condition will be locked until a remote  
provisioning command orders the controller card to  
switch the customer data back onto the main line, or a  
signal failure of greater than 30 seconds occurs on the  
protect Slot 8.  
In-Band Commands  
The in-band commands are based on a 16-bit repeating  
binary pattern. These patterns were selected to avoid  
random data replication and yellow alarm generation.  
In-band code qualifications involve receiving the codes  
for 5 contiguous seconds. The in-band codes can be  
transmitted using SF/ESF framing or unframed. See  
Table 2 for in-band commands.  
Protect Receive Path  
The receive path is non-protected and transformer  
coupled between the network and the customer. The  
receive path is monitored for in-band or ESF  
Out-of-Band Commands  
bit-patterned datalink messages. The receive path will The out-of-band commands are based on the ANSI  
be a passive transmission path.  
T1.403-1995 standard on T1 protection switching.  
ANSI T1.403-1995, Table 4, specifies the command  
and response messages for T1 protection switching.  
Protect Transmit Path  
The transmit path is non-protected and transformer  
coupled between the network and the customer. The  
transmit path will be a passive transmission path.  
Out-of-band code qualifications involve receiving the  
codes for greater than 4 consecutive messages. See  
Table 3 for out-of-band commands.  
Table 3. Out-Of-Band Commands  
Hex  
Pattern  
Command  
Binary Pattern  
Table 2. In-Band Commands  
Hex  
Pattern  
Switch Arming  
Slot Enable  
18FF  
0001 1000 1111 1111  
0111 1000 1111 1111  
0111 1010 1111 1111  
0010 0110 1111 1111  
Command  
Binary Pattern  
78FF  
7AFF  
26FF  
Switch Arming  
Slot Enable  
C440  
1100 0100 0100 0000  
1100 0101 0100 0000  
1100 0110 0100 0000  
1100 0100 0100 1111  
Slot Disable  
C540  
C640  
C44F  
Switch Release  
Slot Disable  
Switch Activation  
Code  
Switch Release  
Switch Activation  
Code  
Reset  
Line 1  
Line 2  
Line 3  
Line 4  
Line 5  
Line 6  
Line 7  
24FF  
42FF  
44FF  
46FF  
48FF  
4AFF  
4CFF  
4EFF  
0010 0100 1111 1111  
0100 0010 1111 1111  
0100 0100 1111 1111  
0100 0110 1111 1111  
0100 1000 1111 1111  
0100 1010 1111 1111  
0100 1100 1111 1111  
0100 1110 1111 1111  
Line 1  
Line 2  
Line 3  
Line 4  
Line 5  
Line 6  
Line 7  
C441  
C442  
C443  
C444  
C445  
C446  
C447  
1100 0100 0100 0001  
1100 0100 0100 0010  
1100 0100 0100 0011  
1100 0100 0100 0100  
1100 0100 0100 0101  
1100 0100 0100 0110  
1100 0100 0100 0111  
61190860L1-5B  
Section 61190860L1-5, Issue 2  
7
 
7. PROTECTION SWITCH  
In-Band Slot Enable/Disable Protocol  
See Table 4 for in-band slot enable/disable protocol.  
Remote provisioning for a protection switch can be  
accomplished by sending a specific sequence of  
in-band or out-of-band messages. These remote  
provisioning commands are transmitted to the  
controller card from a remote test facility or a T1 test  
set at a DSX panel.  
Arming  
Arming the controller card prevents an inadvertent  
protection switch operation. The controller card can  
be armed with the presence of the appropriate in-band  
or out-of-band pattern on the network receive  
interface. Disarming the controller card can be  
accomplished with the presence of an in-band (11100)  
or out-of-band (ESF datalink) NIU loop down pattern  
on the network receive interface, a 1-hour time out, a  
protection switch, or a manual reset. See Figure 4 for  
arming activation.  
Figure 4. Arming Operation  
Table 4. In-Band Enable/Disable Protocol  
COE In-Band  
Command Patterns  
Step  
In-Band Pattern  
Controller Card  
1
Send Arming Code  
C440 Hex  
Loopback the Arming Code.  
Loopback the Enable/Disable code for 5 Sec, then  
No Sync for 5 Sec. Repeat until pattern is  
removed.  
Send Slot Enable or  
Disable Code  
C540 Hex Enable  
C640 Hex Disable  
2
Loopback the C44X code where X = line number  
for 5 Sec., then No Sync for 5 Sec. Repeat until  
pattern is removed.  
Send Protection Line  
Switch C44X where X  
= line number  
C44X Hex  
X = Line Number  
3
4
Slot is now Enabled or Disabled for protection  
switching.  
Remove Pattern  
8
Section 61190860L1-5, Issue 2  
61190860L1-5B  
 
In-band Protection Switch Protocol  
See Table 5 for in-band protection switch protocol.  
Out-of-Band Protection Switch Protocol  
See Table 7 for out-of-band protection switch  
protocol.  
Out-of-Band Enable/Disable Protocol  
See Table 6 for out-of-band slot enable/disable  
protocol.  
Table 5. In-Band Protection Switch Protocol  
COE In-Band  
Command Patterns  
Step  
In-Band Pattern  
C440 Hex  
Controller Card  
1
2
Send Arming Code  
Loopback the Arming Code.  
Send Protection Line  
Switch Code  
C44X Hex  
X = Line Number  
Loopback the C44X code where X = line number.  
Slot Enabled  
Slot Disabled  
Perform switchover 5 seconds later. Loss of sync.  
Continuous Loopback of the C44X code where X  
= line number. No switchover and no loss of sync.  
Table 6. Out-Of-Band Enable/Disable Protocol  
COE In-Band  
Command Patterns  
Step  
Bit-Oriented Datalink Pattern  
Controller Card  
1
2
Send Arming Code  
0001 1000 1111 1111  
Loopback Arming Code for 400 ms followed by AIS.  
Send Slot Enable or  
Disable Code  
Enable 0111 1000 1111 1111  
Disable 0111 1010 1111 1111  
Loopback the Enable/Disable code for 400 ms  
followed by AIS.  
Send Protection Line 0100 XXX0 1111 1111  
Loopback line # code for 400 ms followed by AIS.  
3
4
Switch  
XXX = Line Number  
(see Table 3)  
Remove Pattern  
Slot is now Enabled or Disabled for protection  
switching.  
Table 7. Out-Of-Band Protection Switch Protocol  
COE In-Band  
Step Command Patterns  
Bit-Oriented Datalink Pattern  
Controller Card  
1
2
Send Arming Code  
0001 1000 1111 1111  
Loopback Arming Code for 400 ms followed by AIS.  
Loopback line # code:  
Send Protection Line 0100 XXX0 1111 1111  
Switch Code  
XXX = Line Number  
(see Table 3)  
Slot Enabled  
Perform switchover after 4 consective messages  
received.  
Slot Disabled  
Loopback line # code followed by AIS. No switchover.  
61190860L1-5B  
Section 61190860L1-5, Issue 2  
9
 
See Figure 5 and Figure 6 for switchover codes  
and traffic results.  
NOTE  
Communicationusingin-bandcodeswilloverride  
the customer’s data during the switchback  
operation. Thecustomer’sdatawillbeoverridden  
for 10 seconds. These remote provisioning  
commands are transmitted to the controller card  
fromaremotetestfacilityoraT1testsetataDSX  
panel.  
8. SWITCHBACK  
Switchback operation is defined as the  
re-establishment of the T1 transmission path between  
the network and the customer using the regularly  
assigned line. Communication between the COE and  
RE will be based upon in-band or out-of-band (ESF  
datalink) commands.  
Switchback Receive Path  
Local  
Depressing S2 on the SCIM card for a minimum 5  
seconds resets the protect configuration in memory.  
Remote  
Switchback operation is accomplished by sending a  
specific sequence of SF in-band patterns or ESF  
datalink messages over the standby line.  
CENTRAL OFFICE  
CUSTOMER PREMISES  
Office  
DTWA  
Repeater  
Bay  
DSX-1  
NIU  
CIM  
Main  
Office Repeater  
CPE  
< Live Traffic >  
or  
< Live Traffic >  
HTU-C  
DCS  
T1 / HDSL / HDSL2  
< Acknowledge  
Switch Code >  
Standby  
Office Repeater  
or  
HTU-C  
Switch Codes >  
WECO D4  
WESCOM 3192  
TEST  
PROTECT OPERATION  
Figure 5. Protect Operation  
CENTRAL OFFICE  
CUSTOMER PREMISES  
Office  
Repeater  
Bay  
DTWA  
DSX-1  
NIU  
CIM  
DCS  
Main  
Office Repeater  
CPE  
or  
HTU-C  
T1 / HDSL / HDSL2  
Standby  
Office Repeater  
< Live Traffic >  
or  
< Live Traffic >  
HTU-C  
WECO D4  
WESCOM 3192  
TEST  
SWITCHOVER  
Figure 6. Switchover  
10  
Section 61190860L1-5, Issue 2  
61190860L1-5B  
 
In-band Release Protocol  
See Table 8 for return to normal operation.  
9. AUTO-PROTECT OPERATION  
When the Pro-Cap is configured in a Total Access  
3000 network optioned for the auto-protect feature, the  
TA 3000 will re-map a failed loop's data to the TA  
3000 protect unit which in turn sends the protect  
initiate codes to the Pro-Cap. The Pro-Cap will put its  
protect unit online to complete the standby  
transmission loop to the customer. Loss of data  
transmission on a particular loop for any reason  
initiates the protect function. See Figure 7. Normal  
transmission is automatically restored when the failure  
is corrected.  
Out-of-Band Release Protocol  
See Table 9 for return to normal operation.  
Signal Transmit  
The controller card will transmit a 0 dB signal.  
Line Build Out (LBO)  
The controller card will not provide LBO functions.  
The controller card will rely upon the NIU to provide  
LBO.  
Table 8. In-Band Protection Release Protocol  
COE In-Band  
Command Patterns  
Step  
In-Band Pattern  
Controller Card  
1
2
Send switch release code  
Remove pattern  
C44F Hex  
Loopback Release Code. Perform switchback 5 seconds later.  
Slot is returned to normal operation.  
Table 9. Out-Of-Band Protection Release Protocol  
Step  
Controller Card  
COE In-Band  
Command Patterns  
Bit oriented Datalink  
Pattern  
1
2
Send switch release code 0010 0110 1111 1111 Perform switchback after 4 consecutive messages received.  
Remove pattern  
Slot is returned to normal operation.  
Total Access 3000  
H2TU-Cs  
Pro-Cap  
Remote  
Units  
D
4
R4  
C
3
2
1
R3  
DS3  
Feed  
L2  
MUX  
CPE  
B
R2  
A
R1  
Normal Operation  
Auto-Protect Operation (Loop A Failure)  
Figure 7. Total Access 3000 Auto-protect Switching  
61190860L1-5B  
Section 61190860L1-5, Issue 2  
11  
 
10. SPECIFICATIONS  
See Table 10 for Specifications.  
11. MAINTENANCE  
The Pro-Cap does not require maintenance for normal  
operation.  
12. WARRANTY AND CUSTOMER SERVICE  
Table 10. Specifications  
ADTRAN will replace or repair this product within ten  
(10) years from the date of shipment if it does not meet  
its published specifications or fails while in service.  
Refer to ADTRAN U.S. and Canada Carrier Networks  
Equipment Warranty, document 60000087-10.  
Specification  
Physical Interface:  
Signal:  
4-Wire  
T1 Bipolar  
Coding:  
AMI or B8ZS compatible  
SF, ESF, or Unframed  
1.544 Mb/s @ 50 ppm  
0 dB  
Contact Customer And Product Service (CAPS) prior to  
returning equipment to ADTRAN.  
Framing:  
For service, CAPS requests, or further information,  
contact one of the following numbers:  
Line Rate:  
Transmit Signal:  
Insertion Loss:  
Line Impedance:  
ADTRAN Sales  
Pricing/Availability  
(800) 827-0807  
1.5 dB max at 772 kHz  
100 ohms ( 20%) at 772 kHz  
-3  
ADTRAN Technical Support  
Pre-sales Applications/Post-sales Technical Assistance  
(800) 726-8663  
Maximum Detect Error < 10  
Rate:  
Power:  
Span Power at 57 to 63 mA  
Local Power at 24 VDC to  
56 VDC  
Standard hours: Monday-Friday, 7 a.m. - 7 p.m. CST  
Emergency hours: 7 days/week, 24 hours/day  
DC Voltage Drop (Span 24 VDC at 60 mA  
Powered):  
ADTRAN Repair/CAPS  
Return for Repair/Upgrade  
(256) 963-8722  
Operating Temperature: -40° C to +65° C  
Humidity:  
Up to 95% noncondensing  
Repair and Return Address  
ADTRAN, Inc.  
CAPS Department  
UL Compliance:  
FCC Compliance:  
UL 1950 3rd Edition  
FCC Part 15, Subpart B, Class  
A Requirements  
901 Explorer Boulevard  
Huntsville, Alabama 35806-2807  
12  
Section 61190860L1-5, Issue 2  
61190860L1-5B  
 

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