Wiring And Installation; Before Installation; Wiring Method - Aiphone NDA-20 Instructions Manual

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COMPONENTS & WIRING (Cont.)
WIRING & INSTALLATION:

Before Installation:

· Make sure you have the proper power supply(ies) and all necessary and compatible equipment for the system.
· Background music is optional and requires additional equipment. See notes below.
· Lay out your system in advance, assigning station numbers for all sub station locations.
· Surge protection for the intercom equipment is strongly recommended. Add SA-1 surge arrestors for the power
supply, plus one per two wires connected to the master station.
Wire:
· Shielded wire is strongly recommended. Use the proper gauge for the distance being run.

Wiring Method:

· Run intercom cables at least 20" away from all AC wiring, fluorescent lights, dimmer switches, and other
electrical or electronic devices. Wiring can cross AC wires at 90 degrees.
· Sub stations may be homerun to the master station, or daisy-chained. If daisy-chained, include one
common wires plus one individual wire per station on the run.
· If more than one master is used, homerun sub to the NEW-5 Dual Master Adaptors, then wire NEW-5's to each master.
Intercom Locations:
· Do not install intercoms near dimmer or light switches, or other electrical wall devices.
· To prevent feedback, do not place sub stations back-to-back on a common wall.
Mounting the Master & Add-On Units:
· Each master and add-on requires three rack console spaces.
· Secure the masters and add-on stations using the included screws. See information provided with your rack console for
more detailed information.
Mounting the terminal board:
· Make sure that the appropriate terminal board assembly is used for the master and add-on selector(s). Master and
add-on mother terminal boards mounted on terminal board assembly are different and are NOT interchangeable.
· Secure the terminal board inside the rack console using the supplied screws
· Terminal board must be mounted within 5' of the master and add-on units, connected with ribbon cables.
Individual Components for System:
NDRM-12 12-call Master Station
NDRM-20 20-call Master Station
NDA-20 20-call Add-on Selector
NDA-40 40-call Add-on Selector
NDI-4S 4-Station selector add-on kit (NDRM-12 or NDA-20 can be expanded to 20 and
40, respectively)
TBP-6 Terminal Back Plate for up to 6 terminal boards
PS-2420UL 24V DC, 2A Power Supply (1 per master and 1 per each add-on panel)
NE-NVP/B Vandal proof sub station
NE-NVP-RA Vandal proof sub for Areas of Rescue Assistance
NE-NVP-2DC Vandal proof sub station with standard and emergency DPDT call button
NE-SS Vandal proof sub station, 2-Gang
NE-SSR Vandal proof sub station with red mushroom push button, 2-Gang
NE-JA Flush mount door station with stainless steel cover
NE-DA Surface mount door station
NA-NE Flush mount sub station with aluminum faceplate
NA-A Wall/Desk mount sub
NA-AN Wall/Desk mount sub with privacy
NA-T/A Handset Sub Station
SBX-NVP Surface mount box for NE-NVP/B sub station
SBX-2G Surface mount box for NE-SS and NE-SSR sub station
NBX-2 Surface mount box for NA-NE sub station
SA-1 Surge Arrestor (1 per 2 wires being protected)
NEW-5 Dual Master Adaptor (1 per 5 sub stations)
PS-1225UL 12V DC power supply for NEW-5 (1 per 5 NEW-5)
NB-U Background Music Adaptor
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