Symmetricom TimeSource 3600, Manual

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6
Specifications
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Time of Day Outputs (cont’d)
Cisco Systems Format
Connector Type: RJ-45
Connector Label: TOD
Connector Location: Connector panel
Electrical Interface: RS-485
Baud Rate: 9600 b/s
Bit Configuration: 8 data bits, No parity, 1 stop bit
Data Format: See Figure 42
Figure 42. Cisco Systems Data Format
1 Satellite availability: * = valid, ! = not valid
2 Revision
3 Modified Julian date (number of days past midnight, Nov 17, 1858)
4 Year/month/day
5 Hours:minutes:seconds
6 Indicator of time zone offset (+, –, or 0)
7 Time zone offset
8 Leap second indicator
9 Latitude
10 Longitude
11 Altitude above mean sea level in meters
12 Alarm severity: EV = event, MN = minor, MJ = major, CL = critical
13 Alarm source
14 Alarm cause: holdover, BT3 warm-up, or hardware fault
1 7 3 12
Example:
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