Antaira Technologies - Industrial Ethernet Switches
LMP-1600G-M12-67-24 Series - Hardware Manual - v1.0.1
2.9 Relay Contact and Digital Input
The Ethernet switch is equipped with an M12 5-Pin A-Coded Male connector with a normally closed relay contact for fault
alarm and digital input (DI). The pin assignment of this connector is shown in
Table 2.6
.
M12 5-Pin A-Coded Male Connector
Pinouts
Function
Description
1
DI+ Relay Com
Common
2
DI+
Digital Input +
3
DI-
Digital Input -
4
DI- Relay (N.C.)
Normally Closed
5
NA
Not Assigned
Table 2.6 - Relay and DI pinouts
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Connection of Cables
○
Minimum Wire Gauge: 24AWG
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Relay Contact
Relay is opened if any event listed below happens:
1. The current PoE outputs of all connected PDs exceed 240 Watts (for PoE models)
2. Power 1 or Power 2 was inactive
3. If anyone of all PoE ports exceeds 30 Watts (for PoE models)
4. Event happened by software setting
Relay is closed under the conditions below:
1. No event after reboot
2. No event after reset the switch
