GE EST iO500 User Manual

Chapter 2: Installation and wiring
76 EST iO64 and iO500 Technical Reference Manual
CTM module wiring
The CTM City Tie Module is an interface between the control panel
notification appliance circuit and a master box. It provides off-
premises signal transmission for systems that must comply with
NFPA requirements for Auxiliary Protective Systems. The CTM
activates a local energy fire alarm box. For detailed information and
wiring, refer to the CTM Installation Sheet (P/N 3101025).
Requirements
When connecting a CTM to the panel, the following hardware and
programming requirements must be met:
• The NAC used must be dedicated to CTM use only
• All alarm zones must be programmed to activate the dedicated
NAC
• The NAC used must not be programmed for signal silence
Wiring
The following wiring diagrams show how the polarity switches
during an alarm condition.
Panel in normal condition
Notification
appliance circuit
1
1
2
2
CTM
+
+
+
+
_
_
_
_
[1] [2]
Master box
Normal condition
[3]
[4]
[5]
[6]
Public fire alarm
reporting system
3
4
Panel in alarm condition
Notification
appliance circuit
1
1
2
2
CTM
+
+
+
+
_
_
_
_
[1]
[2]
Master box
Public fire alarm
reporting system
Alarm condition
[3]
[4]
[5]
[6]
3
4

GE EST iO500 Specifications

General

Brand	GE
Model	EST iO500
Category	Control Panel
Language	English