MTS 2 and MTS 4 Installation, Configuration and Basic Service Manual
Figure 4-56 Alarm Wiring Connection on MTS 4 Junction Panel
The MTS supports the following alarm inputs and control outputs in all configurations:
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Figure 4-57 External Alarm Connector Pinout
Table 4-8 External Alarm Connector
Port 2 D-Type 25 Pin
13
25
12
6802800U74-N September 2009
15 opto-isolated 12V alarm inputs
◦
Alarm inputs and Alarm ground are floating
External alarms are connected to an External Alarm 2-16 port and one of the 6 GND (Alarm) ports
The 6 GND (Alarm) ports are connected internally
External alarm voltage (open) = 12V typical
External alarm current (short circuit) = 8mA typical
Control output 1 (2 pins) = alarm relay (Normally Open and Common contacts)
Control output 2 (2 pins) = alarm relay (Normally Open and Common contacts)
Control Output 2
Control Output 2
Control Output 1
External Alarm Cabling
Description
4-61