Product manual

Installation instructions, LTU cabling
Technical Product Manual - DCT1800-GAP
TD 92093 (1/LZBNB 103 108 R4D) / 2006-03-09/ Ver.C
© 2006
139
Fig. 92 LTU/MDF cascade cable set wiring diagram
Cable Cable pair Colour LTC Signal
/1
(shortest
cable pair)
1 white-blue LTC1 a’0 - b’0
2 white-orange a0 - b0
3 white-green LT C2 a’1 - b’1
4 white-brown a1 - b1
5 red-brown LTC3 a’2 - b’2
6 red-blue a2 - b2
7 red-orange LTC4 a’3 - b’3
8 red-green a3 - b3
/2
(longest
cable pair)
1 white-blue LTC5 a’4 - b’4
2 white-orange a4 - b4
3 white-green LT C6 a’5 - b’5
4 white-brown a5 - b5
5 red-brown LTC7 a’6 - b’6
6 red-blue a6 - b6
7 red-orange LTC8 a’7 - b’7
8 red-green a7 - b7
Table 8 Identification of the cable pairs in REX-CAB9003 (TSRNB 101 32) and
REX-CAB9005 (TSRNB 101 45) (cascade cables)
PBX
LTU
Extension
number N
Extension
number N
a, b a', b'
MDF
Cordless
phone
077