User Manual

MDR5800 User Manual
862-01881 Issue 6 Page 17
Figure 3. Indoor Unit Rear Panel
2.3.5 IU/OU Link LED
This LED indicates if there is a suitable electrical connection between the Indoor and
Outdoor Units
1
.
2.3.6 IU/OU Data Interconnect RJ45
This receptacle accepts an RJ45 plug that connects to UV-protected STP (Screened
twisted pair) cable used between the IU and the OU.
2.3.7 IU/OU Power Interconnect
This connector (socket) is used for power interconnection between the IU and the OU.
The connection is made using UV-protected 2-core cable. The cable is connected to
a GREEN connector, a plug. The polarity sense (labelled) must be maintained
between the IU and the OU.
2.3.8 Auxiliary In/Out Port
The auxiliary in/out port is used for remote monitoring and control. The following are
provided
• Two inputs (for sensing contact closure or opening) are provided to sense site
alarm inputs. The states of these alarm inputs can be monitored with NMS, as
well as from an SNMP Management Station.
• Two relay contact outputs, normally-open and normally-closed contacts, are
provided as alarm / auxiliary outputs. Output states are software customised
1
Note that only the Ethernet Physical interface is checked on V1 hardware with this LED, not the
RS232/485 interface. The integrity of the RS232/485 interface is checked using the front panel
“System LED”.
IU/OU Data
Interconnect RJ45
IU/OU Power
Interconnect
Auxiliary IO
DC In
Fuse
Holder
ON/OFF
Switch
Ground
Terminal
IU/OU Link LED