Special
Order
1103
Products
NDRM
Rack Mount Communication and Access/Camera Control System
Master Consoles: NDRM-12 NDRM-20
Add-On Consoles: NDA-20 NDA-40
- INSTRUCTIONS -
The NDRM Rack Mount Communication and Access/Camera Control System is designed for communication
between a central master console and remote intercom stations. In addition to communication to remote locations,
an external device can be activated, such as a CCTV camera when the associated sub station is selected, a door
strike or maglock can be selectively controlled, or both functions can be included. All other features, functions,
and components are the same as a standard NEM system.
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NAMES & FEATURES
NDRM-20 (pictured)
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NAMES & FUNCTIONS:
1. All Call Volume
2. Transmit Volume
3. Receive Volume
4. Call Tone Volume
5. LED Test
6. Door Release Button
7. Speaker
8. Directory Card
9. Handset ON/OFF Button & Light
10. Handset/Headset Jack
11. Microphone
12. Power LED
13. Power Switch
14. Receive Volume (3 postion switch)
41 2 3 5 6 7 8
15. Tone Volume (3 postion switch)
16. Monitor LED
17. All Call Button
18. Talk Button
19. Off Button
20. Reset Button (optional feature)
21. Station Selector Switch
22. Station Selector LED
23. Station select switches 1~4
24. Station select switches 5~8
25. Station select switches 9~12
26. Station select switches 13~16
27. Station select switches 17~20
2324252627
222120191817161514
FEATURES:
• Rack mount master available with 12, and 20 station capacity, occupying 3 rack spaces
• Add-on panels available with 20 or 40 station capacity, occupying 3 rack spaces
• Field expandable with 4 station add-on kit (NDRM-12 and NDA-20 only)
• Expandable to 100 intercom stations with All Call
• Simplex open voice communication
• Modular handset jack for VOX handset or headset communication to remote station(s)
• Intercom channels with LED status indication (calling in and communicating)
• Selective door release and CCTV camera activation while in communication with a remote station
• Call-in LED and tone stay on until call is answered
• Built-in All Call for up to 100 stations
• One master, or dual master w/NEW-5 adaptor per 5 subs
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COMPONENTS & WIRING
TERMINAL DEFINITIONS CP-544 - Sub & Relay connection PC Board:
NO Normally open side of momentary relay contact (activated when door release button is pressed)
COM Common side of momentary relay contact (activated when door release button is pressed)
MomentConst
NC Normally closed side of momentary relay contact (activated when door release button is pressed)
NO Normally open side of maintained relay contact (activated when station button is selected)
COM Common side of maintained relay contact (activated when station button is selected)
E Common side of voice communication
H 14V DC output
1~4 Station select number (Numbered in sequence per size of master)
(Numbered top to bottom, right to left on master station.)
CN51 Plug for connection to CP-530 (located inside master or add-on selector)
TERMINAL DEFINITIONS CP-543A - Mother Board (Master and Add-On):
NO Normally open side of relay contact (Master Only)
(Activated when Door release button is pressed)
COM Common side of relay contact (Master Only)
CP-543A (Master Station)
(Activated when Door release button is pressed)
X1~X8 Add-on selector connection (Master Only)
Q Occupied circuit control (Master Only)
H 14V DC output (Master Only)
E Common side of communication (Master Only)
S Chime extension output (Master Only)
B All Call signal activation (Master Only)
Y Internal amplifier control (Master Only)
Vn/An All Call Circuit
CP-543A (Add-On Selector)
A+/A- 24V DC Power
B+/B- 24V DC Power (Master Only)
CN1 Connection to NDRM master unit (Master Only)
CN1 Connection to NDA Add-on unit (Add-On Only)
IMPORTANT!
Make sure that terminal board assembly that contains the Master mother terminal board (CP-543A) is connected
to the Master Station. The Add-on terminal board contains the Add-on mother terminal board (CP-543A), but it is
slightly different. Master and add-on mother terminal boards are NOT interchangeable.
TERMINAL BOARD ASSEMBLY LAYOUT:
(NDRM-20 Shown)
CP-543A Mother
Terminal Board
CP-544 Sub & Relay Board
(Stations 13~16)
CP-544 Sub & Relay Board
(Stations 17~20)
7"H x 19"W x 2"D
CP-544 Sub & Relay Board
(Stations 1~4)
CP-544 Sub & Relay Board
(Stations 5~8)
CP-544 Sub & Relay Board
(Stations 9~12)
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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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