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100 Connecting the LAN Interface Units to the System
Figure 11-1
The LAN Interface Unit (with Line Card Option Board with Eight RS-232-C Ports)
3-Prong AC
Power Cable
Installing the LAN Interface Unit
If the LIUs have not been installed prior to installation day, proceed as follows (all
options are set at the factory prior to shipment):
(1) Refer to the floor plan, wiring log, and configuration drawings for information
(2) Remove the LIU from the carton, along with the ac power cord, high-speed line
The commercial power outlet should be installed near the equipment so that it
is easily accessible. The power connection should be made using a plug and
socket (not a permanent connection) since the primary means of disconnecting
power to the LIU is by pulling the LIU plug out of the power socket.
(3) Set each LIU on a flat surface, such as a table, or install it on a wall according to
(4) Make the cabling connections as described in the following procedures, then
Practice 450-1011-201
on where the LIUs are to be installed and how they are to be cabled.
The total distance between the LIU and the cabinet must not exceed 610 m
(2000 ft), including the distance between the cabinet to the cross-connect panel,
from the cross-connect panel to the RJ11 jack, and from the jack to the LIU.
cord, and wall-mounting bracket.
Fig. 11-2.
Each location should be close to a commercial 110 Vac source, be well
ventilated, and free from disturbance from passers-by.
plug in the LIU's power cord to power it up. The Power light should come on.
Note: The system administrator enters the appropriate set-up information in
System Administrative Services (SAS).
8 LIU Ports
(on the Optional LCO Board)
Port 3 Parallel Connector
Port 2 RS-232-C Connector
Port 1 RS-232-C Connector
RJ11 Jack
Power Indicator
Wall-Mounting Bracket
CAUTION:
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