6.4 Error Relay
A 3-pin MSTB connector labeled "Error" is located on
the rear panel of the device. This 0 V ("dry") relay
output is connected to the TTL TIME_SYNC output of
the reference clock (GPS, PZF, TCR, etc.) Normally,
when the internal reference clock has been synchro-
nized to its source (GPS, DCF77, or IGIG), this relay
will switch to "NO" (Normally Open) mode. However, if
there is a poor antenna signal or the device has been
switched off, the relay will fall back to "NC" (Normally
Closed) mode.
This relay can also be switched to a "NO" state using
messages, providing a variety of switch states at this
output.
Technical Specifications
Max. Switching Voltage:
125 V DC
140 V AC
Max. Switching Current:
1 A
Max. Switching Load:
DC
30 W
AC
60 VA
UL/CSA Switching Current:
0.46 A 140 V AC
0.46 A 65 V DC
1 A
30 V DC
Response Time:
Approx. 2 ms
Normal Operation Mode
Normal Operation:
CO - NO connected
CO NO NC
Error Mode
Error:
CO - NC connected
CO NO NC
Error
CO NO NC
WARNING!
This equipment is operated at a hazardous voltage.
Danger of death from electric shock!
- Hazardous voltages may be passing through the terminal of the fault
- Never work with open terminals and plugs while the power is on!
- When handling the connectors of the error relay cable,
always disconnect
both ends of the cable from their respective devices!
signal relay! Never handle the fault signal relay terminal while the
signal voltage is present!
22
Date: March 1, 2022
LANTIME
