Appendices
255
Cable Specification RS-449/RS-366 Cable TANDBERG MXP and Classic Endpoints that support External Network
• Connector on Tandberg End:
o Female 26pin High Density DSUB Newark P/N 50F2055 or Equivalent
• Connector on RS-449:
o DSUB 37 pin Male
• Connector on RS-366:
o DSUB 25 pin Male
Signal Name Female
26pin DSUB
(Tandberg
end)
Pin Number
Male
37pin DSUB
(DCE end)
Pin Number
Male
25pin DSUB
RS-366
Pin Number
Comments
Frame Ground 1 1 Do not connect shield to FGND
Signal Ground 19 19,30
Send Data (A)
Send Data (B)
11
12
4
22 Twisted Pair
Send Timing (A)
Send Timing (B)
17
18
5
23 Twisted Pair
Receive Data (A)
Receive Data (B)
13
14
6
24 Twisted Pair
Receive Timing(A)
Receive Timing (B)
15
16
8
26 Twisted Pair
Terminal Ready(A) 26 12
Receiver Ready (A)
Receiver Ready (B)
22
23
13
31 Twisted Pair
Incoming Call (A) 24 15
LOS A 25 36 LOS A Unbalanced
RS366 DPR 2 2
RS366 ACR 3 3
RS366 CRQ 4 4
RS366 PND 5 5
RS366 DLO 6 22
RS366 NB1 7 14
RS366 NB2 8 15
RS366 NB4 9 16
RS366 NB8 10 17
RS366 DSC 20 13
RS366 PWI 20 6
RS366 GND 1 7