Bi-Directional Communication, Rs-485 [1204-0B] - Spectracom SecureSync User Reference Manual

5.6 Miscellaneous Option Cards
5.6.4

Bi-Directional Communication, RS-485 [1204-0B]

Inputs/Outputs : Bi-directional Communication Port
Signal Type and Connector : Balanced RS-485 (3.8 mm terminal block)
Maximum Number of Cards : 1
Ordering Information : 1204-0B: RS-485 Communications Module
Figure 5-46:
Pin Assignments
Pin No.
1
2
3
4
5
6
430
YYYY Year
Space Separator
DDD Day of Year (001-366)
Space Separator
HH Hour of the Day (00-23)
: Colon Separator
MM Minutes of the Hour (00-59)
: Colon Separator
SS Seconds (00-59), (00-60 for leap second)
. Period Separator
XXXXXXXXX 9-digit Sub-Seconds Time (5 ns resolution)
CR Carriage Return
LF Line Feed
Model 1204-0B option card rear plate
Signal
GND
RS-485 IN+
RS-485 IN-
GND
RS485 OUT+
RS485 OUT-
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5 SecureSync User Reference Guide Rev. 18