SilentKnight 5129 Digital Alarm Communicator Transmitter - Manual (Page 16)

Model 5128/29 Fire Slave Communicator Installation Manual
12 150805
3.6 Channel Operation and Wiring
The 5128/29 features four fully supervised channel (zone) inputs. They can be programmed to accept two types
of inputs. Contact closure, and active high voltage input.
CHANNEL 1 (ZONE 1): FIRE ALARM
CHANNEL 2 (ZONE 2): FIRE TROUBLE
CHANNEL 3 (ZONE 3): SPRINKLER SUPERVISORY
CHANNEL 4 (ZONE 4): FIRE ALARM
3.6.1 Dry Contact
A short across the end-of-line resistor (EOL) causes an active channel (zone). An open loop causes a trouble
condition.See Figure 3-5.
3.6.2 Voltage Input (Active High)
Figure 3-5 illustrates how to wire the 5128/29 for an active high voltage input. The input must be from a
compatible UL listed control panel. A short across the EOL or an open loop causes a trouble condition. Pulling
the input high (18 to 30 VDC) causes the channel to activate.
Figure 3-5 P2 Connections
Dry Contact
Example
Voltage Input
Example
Supervised
Power Limited
UL Listed 4.7 k EOL
Model 7628