P/N 315-093223-7
Installation Instructions
Silent Knight Model 5128/5129 Digital Fire
Communicator Connected to the
SXL-EX Control Panel
Appendix for the SXL-EX Manual
OPERATION
The SXL-EX Control Panel reports system
conditions to a Central Station using the
Silent Knight Model 5128/5129, a four chan-
nel digital communicator that reports alarm,
trouble, supervisory, and miscellaneous
status. When used with the SXL-EX, the
Silent Knight Model 5128/5129 uses the
alarm, trouble, and supervisory channels.
The miscellaneous status channel may be
used to annunciate conditions other than fire
at the Central Station.
ELECTRICAL
CHARACTERISTICS
Supervisory: 84mA, 18-40 VDC
Alarm: 154mA, 18-40 VDC
INSTALLATION
Mounting
Silent Knight Model 5128
Mount the Silent Knight Model 5128 within
the SXL-EX enclosure as shown in Figure 1.
Silent Knight Model 5129
The Silent Knight Model 5129 must be
mounted outside of the SXL-EX enclosure
and within 20 feet of it. All electrical wiring
must be in metal conduit.
Electrical
Remove all system power before
installation, first battery and then AC.
(To power up, connect the AC first
and then the battery.)
The SXL-EX Control Panel connects to the
Silent Knight Model 5128/5129 Digital Fire
Communicator using the Alarm and Trouble
dry contacts on the SXL-EX Main Board (See
Figure 2). The Supervisory dry contact is
made by using either the SZE-4X or the
SRC-8 dry contact relay to follow any SXL-EX
supervisory event.
(Refer to the SXL-EX
Operation, Installation, and Maintenance
Manual, P/N 315-095997, for programming
instructions. Also refer to the Silent Knight
5128/5129 Fire Slave Communicator Installation
Manual, August, 1994, P/N 150805, provided
with the Silent Knight Model 5128/5129 for
dialer instructions.)
The Silent Knight Model 5128 monitors all
System troubles through the SXL-EX trouble
relay. The SXL-EX delays the AC Fail trouble
signal in accordance with NFPA and UL
requirements.
In NFPA 72 remote station connections,
provide 60 hour backup battery capacity.
NOTE: The SXL-EX Control Unit delays the AC
Fail trouble transmitted by the Silent
Knight Model 5128/5129 dialer for 6 hours.
Fire Safety
Siemens Building Technologies, Inc.
8 Fernwood Road
Florham Park, New Jersey 07932
Siemens Building Technologies, Ltd.
2 Kenview Boulevard
Brampton, Ontario L6T 5E4 Canada