Connecting the lan port, 6 connecting the lan port, Lan interface connector – Alpha Technologies CFR 3000, CFR 3000RM User Manual
Page 28: This db–9 port provides dry contact, Status monitoring and output shutdown, Capability via lan communication (sec, Tion 2.7), How to connect the lan port (section 2.7), 7 connecting the lan port, 2installation 22
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2
Installation
22
2.7
Connecting the LAN Port
The unit can be remotely monitored and shutdown with the unit’s DB–9 LAN port (Figure 2.9).
Two dry contacts provide line failure and low battery information. A connection to the unit’s mi-
croprocessor shuts down the unit’s output. The shutdown delay, duration and recovery is con-
trolled via RS–232 commands (Section 4.5).
Figure 2.9
Wiring the LAN Port
8
7
6
5
4
3
2
1
Output
Shutdown
N.O. Line
Failure
N.O. Low
Battery
UPS Internal
UPS External
9
GND
+12 VDC
5 mA (Max)
Common
1
2
3
4
5
6
7
8
9
Low
Battery
Not
Connected
Not
Connected
+12 VDC
5 mA (Max)
Output
Shutdown
Line
Fail
Common
Not
Connected
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