- INSTRUCTIONS -
The N-20AS and N-40AS add-on selectors are designed to function with NEM Lamp Memory System, Type "C" or
later. Multiple add-on selectors can be added to a master station along with a variety of sub stations to create a
communication system tailored to a user's needs. All standard NEM system accessories can be used in
conjunction with the add-on selectors.
N-
n
AS
Add-on Selectors for the NEM Lamp Memory System
N-20AS, 20-call N-40AS, 40-call
Special
Order
Products
Pg. 1
NAMES & FUNCTIONS:
1. OFF button
2. Selector button
3. OFF LED
4. Directory card
5. Station selector LED
SPECIFICATIONS:
Power Source:
24V DC. Use PS-2410A (N-20AS) or PS-24E (N-40AS). When connecting N-20AS with
NEM-30,40, use a PS-24E for the add-on selector, matching the power supply being used for the
master station.
Communication Output: 500mW at 20 ohms
Communication:
Push-to-talk, release-to-listen (TALK button) or VOX handset at master. (Handset models only.)
Hands free at sub station.
All call output:
6W in a system of up to 20 sub stations
12W in a system between 21 and 40 stations.
Calling:
Master to sub: By voice only after pretone.
Sub to master: Call button on sub activates tone and LED, remaining activated until answered.
Wiring:
2 conductors homerun to sub station, or loop multi-conductor cable with 1 common wire
plus 1 individual wire per sub station on the wire run.
Shielded cable is recommended.
Use Aiphone #822202 (22AWG) or #821802 (18AWG) 2 cond.
Multiconductor: Aiphone #822210 (10 cond.), #822215 (15 cond.), #822220 (20 cond.)
Wiring Distance:
420' with 22AWG; 1,000' with 18AWG.
N-
n
AS TERMINAL DEFINITIONS:
+
Positive 24V DC
-
Negative
1~40
Station number
E
Common communication
Individual Components for System:
NEM-
n
Master station (10, 20, 30, 40-call sizes)
NEM-
nA
Master station with handset (10, 20, 30, 40-call sizes)
NA-series
Any sub station with NA, NB, or NE model number prefix
PS-2410A 24V DC, 1A Power Supply for 10-20 station systems
PS-24E
24V DC, 2A Power Supply for 30-40 station systems
Other Accessory items listed in catalog or price list as compatible with the NEM series.
1
2
5
4
3
