Pin Number Signal Function Notes
5 GND Ground
Bottom row of 4 pins
6 NC No connection
7 NC No connection
8 NC No connection
9 NC No connection
ASCII Time Code, RS-485 [1204-04]: Specifications
Inputs/Outputs: (1) Input, (1) Output
Signal Type and Connector: (1) RS-485 terminal block for both Input and Output
Accuracy: ±100…1000 µs (format dependent)
Maximum Number of Cards: 6
Ordering Information: 1204-04 ASCII Time Code Module (RS-485)
Figure 5-52: Model 1204-04 option card rear plate
Pin Assignments
Table 5-23:
Pin-out, RS-485 terminal block connector J1
Pin No. Signal Function
1 (left) SERIALTX_RS485+ + RS-485 data output
2 SERIALTX_RS485- - RS-485 data output
3 GND Ground
4 PPS_OUT_RS485+ + 1PPS output
5 PPS_OUT_RS485- - 1PPS output
446 SecureSync User Reference Guide
APPENDIX
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