0605
Nurse Call System
NH-1SA-AC-BLU, NH-1SA-ACB-BLU Code Blue Station,
NHR-7A-CB1, NHR-7A-CB2 Code Blue Call Switch
- INSTRUCTIONS -
The models listed above have been modified to allow the Blue Call button (NHR-7A-CB) to activate the highest
priority call on the NHX Nurse Call System. When the Blue switch is pushed down to the lower position, the master
station will indicate the call with a fast intermittent call tone and flashing LED. The call can be cancelled only by
raising the switch to the upper position. All other call levels remain the same.
WIRING DIAGRAM:
NH-1SA-AC-BLU
Code Blue Sub
NHX-80X
CN1:
Brn
Brn
Red
Org
Yel
Grn
Blu
11
12
13
14
15
16
Red
Org
Yel
Trunk line
output #1
Grn
Blu
NHR-7A-CB1
Code Blue
NHR-4A
CN2:
Brn
Red
Org
Yel
Grn
Blu
Pur
Gry
Brn
Red
Org
21
22
23
24
25
26
Grn
Blu1
Trunk line
output #2
Yel
Grn
Blu
Blu
PS-2420UL
A+
A-
+
-
NHR-7A
Blk
Wht
Yel
Blu(2)
+
-
Gry/Red
B+
B-
2nd dry
contact closure
Brn*
Brn*
PS-2420UL
Models:
• NHR-7A-CB1: standard unit (SPST)
• *NHR-7A-CB2: Includes second dry
contact closure (DPDT)
NOTES:
1. The NH-1SA-ACB-BLU wires the same as the station shown above.
2. NHR-7A-CB1 is a Code Blue station includes one set of contacts (SPST).
3. The NHR-7A-CB2 model includes two dry contact closures (DPDT, BRN wires).
4. Black wire from NH-1SA-AC-BLU is only used in systems with All Call.
5. See operational instructions for the system following on page two of this instruction sheet.
6. Only wiring concerning the Code Blue stations is shown here. Please see standard Installation Manual
for complete information.
NH-1SA-ACB-BLU Instr
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