User Manual

November 1999
M68333 Rev. A Tel-Link PMP - Sector Terminal Installation & Maintenance Manual 8-9
8.2.6 IFL Cabling
WARNING! Do not plug the IDU into the AC outlet or DC power source until the cable to the ODU is
connected. If power is on, a DC voltage (44 VDC) will be present on the N connector of the
IDU and could be shorted when installing the coaxial cable to the ODU.
If an Expansion IDU Chassis is being installed connect it to the Basic IDU Chassis via an IF cable (RG-58)
50-ohm, coaxial cable with male BNC connectors and UTP-5 Cable (refer to Figure 8-7). The length of the
cable should be sufficient to allow a small service loop near each end and shall not exceed 20 ft (6 meters).
When connecting the Basic IDU Chassis to the ODU, sufficient length of cable should be used to allow rout-
ing along the side of the rack, and a service loop. Perform the following steps to complete IF Cabling (refer
to Figure 8-1).
Figure 8-7 - Basic Chassis Connection to Expansion Chassis (Rear View)
RG-58 Coaxial Cable
Basic Chassis
Expansion Chassis
UTP-5 Cable