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Zeta Alarm Systems.
1 . I n t r o d u c t i o n T o T h e
N e t w o r k e d D i g i t a l C o m m u n i c a t o r
The Networked Digital Communicator (ZNDC) is a UL listed dual-line dialer, that allows a Zeta
Alarm Systems Sigma Mk II or Classic 2000 Mk II fire alarm control panel to report events to a cen-
tral monitoring station, over the public phone system. The ZNDC supports the Contact ID reporting
protocol for reporting the type and location of events. The ZNDC requires the use of two phone
lines.
1 . 1
F e a t u r e s
Compatible with the industry-standard Ademco Contact ID reporting protocol.
Built-in dual phone line-seizure circuit.
Programmable for Tone or Pulse dialing.
Dual phone line monitor circuits.
Transient voltage protection of phone lines.
Light-emitting diodes (LEDs), visible from front of enclosure, indicating: Alive (Green); ZNDC
Trouble (Yellow); Line 1 Fault (Yellow); Line 2 Fault (Yellow); Line 1 In Use (Green); Line 2 In
Use (Green).
Easy programming using PC Programming Software
Fuseless design, 24 VDC.
Electrically erasable read-only memory (EEPROM) for nonvolatile storage of all programma-
ble option data. Eliminates the need to reprogram the communicator if power is lost.
Built-in watchdog circuit that monitors the operation of the ZNDC.
Compatibility with many Underwriters Laboratories (UL) Fire Listed receivers (see Section 1.4
for list).
Model 2996 provided as a bare board for mounting inside Zeta Alarm Systems' Sigma Mk II or
Classic 2000 Mk II enclosures.
Model 2997 housed in a 9.25" x 7.18" x 2" metal enclosure.
Compatible with Zeta Alarm Systems Sigma Mk II or Classic 2000 Mk II FACPs.
When used with Classic 2000 Mk II, reports event address for point alarms and troubles.
Optional diagnostic speaker.
May be mounted up to 8000 feet from the FACP. Note: See Section 2.2 for further details.
Comm Test button for generating a manual test report.
Selective reporting.
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H o w T o C o n t a c t
World Wide Web: http://www.zeta-alarms.co.uk
Internet E-Mail:
Phone:
FAX:
Snail Mail:
Revision 1.0
Zeta Alarm Systems
nrpj@zeta-alarms.fsworld.co.uk
+44 1792 455175 or +44 1792 470394
+44 1792 455176
Zeta Alarm Systems
72-78 Morfa Rd
Swansea, U.K. SA1 2EN
Part # MAN-ZNDC-01
ZNDC Installation and Operation Manual
™
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