Aiphone Home Theater System NH 1PA User Manual

NHX  
Nurse Center System  
NH-1PA  
Paging Adaptor for NHX System  
Provides zone paging to an overhead speaker system  
- INSTRUCTIONS -  
Some applications for Nurse Call systems require paging to overhead speakers. The NH-1PA allows a button on the  
NHX master to be used for connection to an external paging amplifier. If multiple zones of paging are required, use  
one NH-1PA per zone.  
NOTE: An NHX system installed with an NH-1PA included does not carry the UL 1069 listing.  
WIRING DIAGRAM:  
NHX-80X  
NH-1PA  
PG-C Amplifier  
PS-2420UL  
TO 70V  
PAGING  
SPEAKERS  
3
4
A+  
A-  
A
G
+
-
OUTPUT  
NOTE:  
+
-
B+  
B-  
AUX input  
Aiphone amplifiers are available with outputs  
of 20, 50 and 100 watts. If connecting to  
another brand of amplifier, use AUX input.  
PS-2420ul  
11  
12  
13  
14  
15  
16  
A1  
A2  
P3  
P4  
D5  
D6  
NH-1PA (Back)  
Trunk Line  
Connection  
(Connect to trunk  
corresponding to  
Page Button  
P3 P4  
A G  
A1 A2  
D5 D6  
location desired.  
NOTES:  
1. When multiple NH-1PA's are included in the same system, each NH-1PA occupies a station button on the  
master station. This reduces the overall capacity for patient stations on the system.  
2. The total amount of wire in a trunkage line including NH-1PA must not exceed 330'.  
3. Adjust the volume of the paging speakers first from the volume control on the NH-1PA. Then adjust the  
volume control on the amplifier.  
4. A system including zone paging does not carry the UL 1069 listing.  
5. Only wiring concerning overhead paging is shown here. For complete installation and wiring information,  
please see the complete NHX Installation Manual.  
CONTROLS AND SETTINGS:  
DIP SWITCH SETTINGS (Located on bottomside of NH-1PA):  
Switch Values from left to right: 1-2-4-8  
NH-1PA  
(Underneath)  
1 2 3 4  
1. Set dip switches to the numerical value of the station button (1~10)  
to be designated as the PAGING button.  
2. Station numbers are 1-10 vertically on the master station.  
ON  
OFF  
Value = 1 2 4 8  
If the Paging button is the TOP button on a column (1), set dip switch 1 to ON.  
If the Paging button is the BOTTOM button (10), set switches 2 & 8 to ON.  
3. Aiphone recommends setting the paging adaptor as station #10 on the first column (trunk line 1, wired as shown  
here.)  
However, any station button can be designated for paging. The paging button is determined by (a) which trunk line the  
NH-1PA is wired to, and (b) the station number setting on the NH-1PA.  
PAGING VOLUME (Located on front of NH-1PA):  
This controls the overall output volume of the paging. Adjust to the desired level.  
 

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