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Appendices
287
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