BinTec X4000, User Manual

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404 X4000 User’s Guide
Technical Data
13
The 20-pole mini Delta ribbon socket has the following pin assignment (a DTE
cable is required for DTE Mode and a DCE cable for DCE Mode):
Table 13-10: Pin assignment of 26-pole mini Delta ribbon socket
DTE/DCE
ITU-T Signal
Signal
direction
Pin no.
X.21bis
(DB-25)
101 ChGND –––– 1 –––– 1
103 TD 2 ––––> 2
104 RD <––––– 3 3
105 RTS 4 ––––> 4
106 CTS <––––– 5 5
107 DSR <––––– 6 6
102 SigGND –––– 7 –––– 7
109 DCD <––––– 8 8
108/2 DTR 9 ––––> 20
113 XTC 11 ––––> 24
114 TxC <––––– 12 15
115 RxC <––––– 13 17
VCC +5V ––––– 14 ––––