User Manual

AirLink Pro T1/E1 Rack Mount Installer’s Guide
Installation and System Administration
Rev. B - 1/97
2-12
T1 DTE Line Connection
To connect the T1 line cable to the DTE:
1. Locate the DTE terminal block on the Airlink Pro T1/E1 Rack Mount rear
panel (see Figure 2-2).
2. Prepare the cable wire so that individual leads are separate. Strip a small
portion of insulation off each wire lead.
3. With the help of a screw driver, push back one of the plastic levers located
on the terminal block.
The following is a list of some suitable coaxial cables:
Type Manufacturer Part
Number
AWG ATTN
1
UL Rating
2
RG-6/U Belden 9248 22 (7/30) .3 dB CM
RG-6/U Belden 88248 22 (7/30) .3 dB CMP
RG-59/U Belden 9259 18 (solid) .3 dB CM
RG-59/U Belden 88259 18 (solid) .3 dB CMP
1
Attenuation per 100 at 1 Mhz.
2
U1 Rating System:
CM= General purpose, vertical tray. Tested per UL-1581.
CMP=Plenum Rated. Tested per UL-910.
The following is a list of some suitable cables for the T1 or E1 Balanced.
The cable type usually specified for indoor T1 use is Western Electric ABAM or
equivalent. An equivalent cable is General Cable Specification 4162D. The
characteristics of these two cables are listed in the table. These cables are
rated in-building use and in-vertical risers and are not rated for use in
plenumbs. Both of these cables use solid wire.
Cable Gauge Impedance Loss at 1 Mhz
ATAM 22 100 Ohms 4.0 dB
GT4162 22 100 Ohms 6.0 dB
A second class of indoor cable is 100 Ohms stranded, shielded 24 ga. These
cables have a characteristic impedance of 100 Ohms and a loss at 1 Mhz of
about 7 dB per 1000’. Representative cables of this type are listed in the
following table. These cables are also suitable for E1 applications.