Specifications

LRS-24 Installation and Operation Manual Appendix A Connector Wiring
Station CLK Connector – LRSI-F-CM2 Modules A-3
Table A-3. Pin Allocation for Management RS-232 Connector on
CM-1/CM-2 Modules (Cont.)
Pin Function Direction
7 Request to Send (RTS) Connected to pins 1, 8
8 Clear to Send (CTS) Connected to pins 1, 7
9 Ring Indicator (RI) N/A
A.4 Station CLK Connector – LRSI-F-CM2 Modules
The station clock interface located on the LRSI-F-CM2 modules are terminated in
a 15-pin D-type female connector, designated STATION CLK, and wired in
accordance with Table A-4.
The connector also includes the contacts of the major and minor alarm relays.
Table A-4. Pin Allocation for LRSI-F-CM2 Modules, Station Clk Connector
Pin Function
1 Station Clock Transmit Output (tip)
2 Not Connected
3 Station Clock Receive Input (tip)
4, 5 Not Connected
6 Minor Alarm Relay – Normally Closed (NC) to pin 14
7 Major Alarm Relay – Normally Open (NO) relative to pin 8
8 Major Alarm Relay – Common Contact
9 Station Clock Transmit Output (ring)
10 Not Connected
11 Station Clock Receive Input (ring)
12 Not Connected
13 Minor Alarm Relay – Normally Open (NO) relative to pin 14
14 Minor Alarm Relay – Common Contact
15 Major Alarm Relay – Normally Closed (NC) to pin 8
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