Wiring The Signaling Line Circuit - Fire-Lite Alarms MS-9200E Programming, Installation, Maintenance And Operating Instruction Manual

Wiring the Signaling Line Circuit

2.6 Wiring the Signaling Line Circuit
The MS-9200 communicates with addressable initiating, monitor and control devices through a Signaling Line Cir-
cuit (SLC) loop. This SLC loop can be wired to meet the requirements of NFPA Style 4 (see Figure 2-11), Style 6
(Figure 2-12) or Style 7 (Figure 2-13). Surge protection for the SLC loop may be provided by using one of the UL
listed compatible surge suppressors listed in the Fire•Lite Device Compatibility Document. Be certain to change the
decade wheels on all detectors and modules from the factory setting of '00'.
Isolator Modules
Isolator Modules permit a zone of detectors and modules to be electrically 'isolated' from the remainder of the Com-
munications Loop, allowing critical loop components to function in the event of a short circuit on the SLC loop wir-
ing (see Figure 2-11, Figure 2-12 and Figure 2-13). These are required to meet the requirements of NFPA Style 7.
Monitor Modules
Addressable Monitor Modules allow the control panel to monitor entire circuits of conventional normally-open con-
tacts, alarm initiating devices, manual pull stations, 4-wire smoke detectors, heat detectors, waterflow, supervisory
devices (see Figure 2-19 and Figure 2-20) and conventional detectors (see Figure 2-21 and Figure 2-22). The
BG-10LX is an addressable manual pull station which contains a miniature monitor module providing point annunci-
ation (see Figure 2-11, Figure 2-12 and Figure 2-26).
Control Modules
Through addressable Control Modules, the control panel can selectively activate Notification Appliance Circuits or
Form-C output relays (see Figure 2-23 and Figure 2-24).
Addressable Detectors
Through the communications loop, the MS-9200 communicates with addressable ionization, photoelectric and photo-
electric/thermal detectors (see Figure 2-27).
Device Capacity
The capacity of each MS-9200 includes up to 99 addressable detectors and an additional combination of up to 99
addressable pull stations, control modules and monitor modules. In addition, the panel supports two NACs.
Note: Refer to A ppendix A and the installation drawings supplied with each loop device for rating and specifications.
Communications Loop Performance
TABLE 2-1:
Single
Open on Single Ground
Loop on Loop
Alarm Capability
1
Trouble
& Trouble
Alarm
Alarm Capability
Capability
& Trouble
& Trouble
Alarm
Alarm Capability
Capability
& Trouble
& Trouble
1. Trouble indicates that a trouble signal will be generated at the control panel during the abnormal condition.
2. Alarm Capability indicates an alarm signal can be transmitted to the control panel during the abnormal condition.
3. Loop operation meeting Style 7 requirements isolates entire physical zone on the communications loop from faults that
occur within other areas of the loop.
28
Loop
Shorted Shorted
Loop and Opened
Style 4 (2-wire) Loop Operation (meets NFPA 72 Style 4 requirements)
Trouble Trouble
2
Style 6 (4-wire) Loop Operation (meets NFPA 72 Style 6 requirements)
Trouble Trouble
Style 7 (4-wire) Loop Operation
Alarm
Capability Trouble
& Trouble
Document #50428
Loop
Shorted and Opened and
Grounded Grounded
Trouble
Trouble Capability
& Trouble
3
(meets NFPA Style 7 requirements)
Alarm
Capability Capability
& Trouble & Trouble
Rev.C1 2/15/99 P/N 50428:C1
Loop
Communications
Loss
Trouble Trouble
Alarm
Trouble
Alarm
Trouble