MDS MX-2104 Spezifikationen Seite 142

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Appendix A Connection Data MX-2100/2104 Installation and Operation Manual
A-4 DC Power Input Connector
A.4 Alarm Relay Connector
The Alarm Relay connector is a 6-pin RJ-12 connector with dry contacts for
relaying alarms from the MX-2100 to activate external equipment. The Alarm
Relay connector can also be used to relay external equipment information to the
MX-2100. Connector pin functions are given in the following table.
Table A-4. Alarm Relay Connector Pinout
Pin Direction Designation Function
1 Out +5V +5 VDC output
2 In/Out Relay F Main relay –Common contact
3 In/Out Relay M Main relay – NC (Normally
Closed) contact
4 In/Out Relay B Main relay – NO (Normally
Open) contact
5 In/Out FGND
6 In FAN Fan status input, active low (TTL)
A.5 DC Power Input Connector
The DC input power connector used on the MX-2104 and the KPS.3, KPS.5,
KPS.7, and DC-powered KM-Ringer modules, is a 3-pin terminal block type
connector. Connector pin functions are marked on the panel. Refer to the
DC Power Supply Connection Supplement at the end of this manual for details.
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