Secutron Inc.
25
4
Wiring the MR-2605
4.1 Wiring Specifications
Figure 8 MR-2605 Terminals Descriptions
Terminal
Label
Description
NAC 1
(+, –)
Notification Appliance Circuit # 1
24 V
DC
, Full-Wave Rectified voltage, 1.5 Amps max.
Programmable as Steady or Temporal output on alarm.
Supervised for opens, shorts and ground fault.
Power limited.
NAC 2
(+, –)
Notification Appliance Circuit # 2
24 V
DC
, Full-Wave Rectified voltage, 1.5 Amps max.
Programmable as Steady or Temporal output on alarm.
Supervised for opens, shorts and ground fault.
Power limited
AUX+
Auxiliary power output
24 V
DC
, filtered and regulated, 500 mA max., 400 mV P-P ripple, power limited. Aux power
shorts must be restored by removing all Aux Power loading.
COM
Auxiliary common power return,
unswitched
24 V
DC
, 500 mA max.
SCOM
Auxiliary common power return, switched
(open circuit on system reset or on 4-wire smoke detector reset)
24 V
DC
, 500 mA max. (Please refer to Appendix A for compatible 4-wire smoke detectors.)
DAT
Data line for remote module communications
CLK
Clock line for remote module communications
TRB NO
Common Trouble relay, Normally Open contact
TRB C
Common Trouble relay, Common contact
Содержание MR-2605
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