Aiphone NEM-30/C - Manual (Page 5)

4 INSTALLATION
SYSTEM COMPOSITION
The NEM-n/C & NEM-nA/C can be composed into the following systems with the optional accessories.
NEM intercom communication System consists of NEM master and sub stations as needed.
Health care communication Each sub station is connected with a corridor call light & reset
button. Ceiling sub NB-L is combined with bedside call switch.
Call switching device Any sub's call-in received by one NEM, can be rotated
to the other NEM on duty.
Dual master call NEW-5 adpator enables up to 5 sub stations to ring two
NEM's simultaneously, install multiply NEW-5's with
a 12V DC power supply.
Music distribution to NA subs NB-U adaptor distributes background music to NA subs
in conjunction with music source & an appropriate amplifier.
COMMUNICATION
After depressing a sub selector button, depress TALK switch to transmit or release to listen. On NEM-A/C
only, lift handset and communicaiton will be automatic activation. Speak into the handset, and NEM transmits
voice. Quit speaking, and NEM turns to receive mode.
STATION SELECTION
1. Sub station: NA-T/A handset can be used alone or attached the other sub station.
2. NEW-5 dual call adaptor Is not useable with in NB-U used system.
POWER SUPPLY
Master stations
NEM-10/C, NEM-20/C
NEM-10A/C, NEM-20A/C
NEM-30/C, NEM-40/C
NEM-30A/C, NEM-40A/C
Power supply
PS-241 OA (24V DC, 1A)
PS-24ME (24VDC, 0.9A)
PS-24E (24V DC, 2A)
PS-24E (24V DC, 2A)
/j\ Do not connect two power supplies in parallel.
WIRING METHODS
Lay out your NEM system in advance. Determine the locations of each NA sub station and wire to each.
Two conductors are required per sub station.
1. Two wires from each sub station to NEM terminal block.
2. Two wires from each sub to a local junction box, then multi-conductor cable to NEM teminai block.
3. Use a multi-conductor cable looped through each sub.
IMPORTANT: When a multi-conductor cable is not used, be sure to run each cable in the same conduit,
in order to make each sub station line as near the common line as possible.
1 .
NEM-10/C
/(T •
NA-A
2 .
ea. 2
NEM-40A/C
J
Junction box
------ a
NA-A
ea. 2
NEM-20A/C
MOUNTING LOCATIONS
1. Select a mounting location which meets the following criteria:
- is free from dust, vibration, - is not near heating or air conditioning equipment,
- does not have temperature/humidity extremes, - run in not bare wires on floor subject to
be pinched by furniture, etc., - is not near inflammable or chemical products.
NONE OF THE SYSTEM COMPONENTS IS EXPLOSION-PROOF TYPE.
2. NBR-7AS bathroom pullcord is moisture-resistant, but not water-resistant.
Avoid such location as near bathtub, etc. where it could receive shower directly.
3. NA-NE is not weather-resistant. Do not install outdoors.