Aiphone PC-359B User manual

SYSTEM/MODEL: NEM
MODIFICATION: Installing PC-359B (or PC-454) with speaker and call button
COMPONENTS REQUIRED: 1. PC-359B or PC-454: Call holding circuit board, one per remote
speaker/call button
2. LT-1: 8 to 20 ohm transformer, one per remote speaker (Use
speaker with 1W handling capacity.)
INSTR/OPERATIONS: 1. If the existing speaker is 8 ohms, install the LT-1 transformer
with the BLUE wires to the speaker.
2. If the existing speaker is 45 ohms, install the LT-1 with the
RED wires to the speaker.
3. Make connections to PC-359B/454 as shown, being careful
not to short any exposed metal components on the PC board. (A
soldering iron and soldering skills are required for the PC-359B.
Wires are provided on the PC-454.)
4. Make sure that no moisture can come into contact with the PC
board when it is installed in its designated location.
REFERENCE DRAWING #: 0404-602
DIFFICULTY LEVEL: 4 - Moderate/hard - Internal connection or component addition.
Aiphone’s product warranty applies to products properly modified using these instructions.
However, if a unit is damaged as a result of improper modification, the warranty does not apply.

- INSTRUCTIONS -
The PC-359B call holding circuit board provides the latching function when a call is placed from a remote station on the
NEM series Lamp Memory System. With this circuit board, a speaker and a "Normally Open" call button can be used as
a remote station where a standard sub station cannot be used. The NEM system impedance is 20 ohms, so either use
a 20 ohm speaker, or an 8 ohm speaker with the LT-1 matching trasformer.
PC-359B
Call Holding Circuit Board for Non-Aiphone Speaker and Call Button with
NEM, NDR, NDRM Systems
Aiphone Communication Systems
1700 130th Ave. N.E.
Bellevue, WA 98005
[phone]
FAX [phone]
TOLL FREE TECHNICAL SUPPORT: [phone]
TOLL FREE FAX LINE: [phone]
E-MAIL: [email protected]
PC-359B Instr.
0404PHJS
SPECIFICATIONS:
Power Source: Supplied by Master Station (NEM, NDR, NDRM)
Speaker: Use 20 ohm speaker, or 8 ohm speaker with LT-1 transformer
Call Button: Normally open momentary contact
Mounting: Conceal behind speaker or call button
Terminations: Solder connections directly to PC board made by installer
Wiring: 2 conductor shielded (1 common and 1 individual wire per remote)
Wiring Distance: 420' w/ 22AWG, 1,000' w/ 18AWG
Dimensions (HxWxD): 3-3/16" x 1-1/4" x 5/8"
WIRING DIAGRAM:
9
8
7
6
5
4
7
7
2
3
2
1
PC-359/B
(solder side view)
To "E" terminal
of master
To
Speaker
"+"
To "#" terminal
of NEM master
To Speaker "-"
Add jumper
between "6" and "7"
Normally Open
call button
* Note that speaker connection is on inner land
pattern solder pad, not the one closest to the edge.
** When using an 8 Ωspeaker, add the LT-1
transformer shown below.
*
** 20 Ω
speaker
20 Ω (red)
LT-1
8 Ω(blue)To PC-359/B. To 8 Ωspeaker.

WIRING DIAGRAM
Call Holding Circuit Board for the NEM System
Connection of speaker, call button, and wiring to master
Using PC-454
Drawing Name:
PC359B~454
0404ph
PC-454
(component view)
To "E" of master
(jumper together)
To 20Ωspeaker "-"
To 20Ωspeaker "+"
To corridor lamp
(remove 1-3 jumper)
To "#" of master
& Call button
To Call button
Green
Black
Gray
White
Blue
Red
Orange
Purple
11 10 9 8 7 6 5 4 3 2 1