Chapter 6 Cable Installation
Figure 6-27 75 ohms E1 trunk cable structure
The cable adopts two 16-core 75 Ω micro coaxial cables. Each cable provides 8 E1s.
End A of the cable is DB68 connector. Make End B connector on the site according
to the cable distribution frame of the office.
2.
120 Ω E1 trunk cable
It implements 120 Ω non-balanced transmission connection of external 2M interface
at interface A, Abis, and Gb interface.
120 Ω cable uses two 120 Ω PCM cables. Each PCM cable contains 16 twisted pairs
with 8XE1. End A of the cable is DB68 connector. Make End B connector on the site
according to the cable distribution frame of the office.
Steps
1.
Connect End A of the cable.
End A of the cable connects to E1/T1 1-16, E1/T1 17-32 on RDTB or E1/T1 1-16
on RSPB; specific quantity of required trunk cable and its specific position shall be
determined by ZXG10 iBSC system.
2.
Connect End B of the cable.
Connect End B of the cable to the cable distribution frame that the office provides or
directly to the peer end.
Note:
End A connector adopts plastic pressure mode and crimp End B connector with a
special tool. Make sure it is reliable and correct.
Sigal relations at two ends of the cable is listed in
and
. Signal
/-(n=0..31) indicates Tx signal of E1 trunk in ZXG10 iBSC system, and signal
/-(n=0..31) indicates Rx signal of E1 trunk.
Table 6-5 75 ohms Cable Description
End A (DB68)
End B1 16-core
End B2 16-core
Signal Name
2
1-core
-
4
1-core shielded
-
E1_TX0-
6
2-core
-
6-31
SJ-20110531095035-004|2011-10-28 (R2.0)
ZTE Proprietary and Confidential
Summary of Contents for ZXG10 iBSC
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