Aiphone Video Gaming Accessories NH 50AC User Manual

NHX  
0708  
Nurse Call System  
All Call Adaptor for NHX System  
1 NH-50AC for All Call up to 49 Stations, 2 NH-50AC for up to 79 Stations  
- INSTRUCTIONS -  
Some applications for Nurse Call systems require All Call. By including this adaptor, a station button on the master  
can be used to call all of the patient stations simultaneously. An additional wire is required to each patient station.  
NOTE: An NHX system installed with an NH-50AC included does not carry the UL 1069 listing.  
* Patient Stations for All Call:  
Model NH-1SA/AC or NH-2SA/AC.  
Additional BLACK wire coming from back of  
unit connects to Gray wire of trunkage cable,  
and to BL terminal of NH-50AC.  
WIRING DIAGRAM:  
Trunk #1  
Patient Stns*  
NH-50AC  
NHX-80X  
Brn  
Brn  
Red  
Blk  
11  
12  
1B  
1R  
BL  
2B  
2R  
BL  
3B  
3R  
BL  
4B  
4R  
BL  
11  
12  
~
Red  
Trunk #2 Patient  
Stns*  
Gray  
Brn  
Brn  
Red  
Blk  
21  
22  
21  
22  
~
Trunkage Line  
Connection  
Terminals  
Red  
Gray  
Trunk #3 Patient  
Stns*  
Brn  
Red  
Gray  
Brn  
Red  
Blk  
31  
32  
31  
32  
~
41  
42  
~
Trunk #4 Patient  
Stns*  
Brn  
41  
42  
Brn  
Red  
Blk  
Red  
Gray  
Trunk #5  
51  
52  
51  
52  
Patient Stns*  
Brn  
Brn  
Red  
Blk  
Org  
Yel  
5B  
5R  
BL  
Red  
Gray  
Org  
A1  
A2  
P3  
P4  
D5  
D6  
53  
54  
55  
56  
Yel  
Grn  
Blu  
Grn  
Blu  
To 2nd NH-50AC  
X1  
(For 50-79 station system)  
PS-1225UL  
Connections to 2nd NH-50AC:  
X1: Control wire  
+
-
+
-
Jumper to  
Negative of  
one PS-2420UL  
A1: Audio  
To AUX input of 2nd NH-50AC  
}
A2: Audio  
12V+: Power  
12V-: Ground  
AUX  
NOTES:  
IMPORTANT:  
1. The application requires one of the station buttons to be  
used for All Call.  
Connection from CCU trunk line terminals determines which  
column the All Call button will be on. (e.g. This example  
shows trunk line 5, so All Call button will be on column 5 of  
master station. Dip switch settings on the NH-50AC will  
designate the All Call button position (1~10).  
Therefore, the standard system can have up to 49 stations,  
and the expanded system can have up to 79 stations.  
2. Only wiring concerning the NH-50AC is shown here. For  
complete installation and wiring information, please see the  
NHX Installation instructions.  
Pg. 1  
 

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