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1. Introduction
The Silent Knight Model 5128/29 is a low-cost slave communicator that meets the requirements for UL 864,
NFPA 72 Central Station Fire Protective Signaling System and Remote Signaling.
NOTE: In this manual, a rectangle represents a key that you press. For example, “Press
ENTER ” means
“Press the <ENTER> key.”
1.1 Features
• Compatibility with the Security Industry Association (SIA) reporting format and six other standard
reporting formats.
• Four channel (zone) inputs for system status reporting: fire alarm (channel or zone 1); system
troublechannel 2 (or zone 2); supervisorychannel 3 (or zone 3); and miscellaneouschannel 4
(or zone 4).
• Optional two-number dialing with same or different account codes and reporting formats. Alarms, troubles,
disables, and tests can be programmed to be reported to either or both numbers.
• Programmable as rotary-only or as Touch-Tone/rotary dialing.
• Built-in dual phone line-seizure circuit.
• Dual phone line monitor circuits.
• Transient voltage protection of phone lines.
• Built-in audible trouble buzzer with a loudness of 80 decibels (dB) at 30 cm (ie, 300 mm or, approximately,
12 inches).
• One relay output, programmable for alarm or trouble conditions.
• Light-emitting diodes (LEDs), visible from front of plastic enclosure, indicating: trouble condition
(yellow); presence of DC power (green), phone line 1 trouble (red); and phone line 2 trouble (red).
• Easy, English-language programming using Model 5230 Remote Annunciator.
• Test features: Real-time programmable 24-hour communicator test; manual communicator test; automatic
daily test (programmable from 5230 annunciator).
• Fuseless design, 24 VDC.
• Electrically erasable read-only memory (EEPROM) for nonvolatile storage of all programmable option
data. Eliminates the need to reprogram the communicator if power is lost.
• Built-in watchdog circuit that monitors the operation of the 5128/29 and resets the communicator if a fault
is detected.
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