Nortel Networks DCT1900 - Manual (Page 323)

Technical Product Manual - DCT1900
Installation Instructions, Modular Cabinet – Cables
Install-DCT1900/R8/mw 26-19
© 2000-2005
26.15 DTU Twisted Pair Cable Set – NTM/TSRNB 101 49 or AWS1033 (E1-120 ohm)
The DTU twisted pair cable AWS1033 (see Figures 26–18) consists of a 120 ohm shielded cable
terminated with two connectors. The cable is used to connect a DTU-E1 to a MS or PBX via a
MDF(Main Distribution Frame). The shielding of the cables is connected to the cabinet via a clamp
which also functions as a strain relief. The length of the cable is 16ft. Excess cable length may be
trimmed at installation.
Fig. 26–18 DTU Twisted Pair Cable - E1
WHT
WHT WHT
BRN
GRN
1 2
7 8
WHT
WHT
ORN
BLU
1 2
7 8
WHT
WHT WHT
ORN
BLU
1 2
7 8
X2 X1
RCV
pairs
XMIT
pairs
View looking into DTU board edge
X1
X2
White/Blue pair
White/Orange pair
White/Green pair
White/Brown pair
Shield clamp