Appendix 19: Cable Specifications - TANDBERG Maestro MXP User Manual

Appendix 19: Cable Specifications

TANDBERG MXP and Classic Endpoints that support External
Network
External Network Pinout
With respect to signals on the NET port:
•
For balanced signals a "0"=low voltage is defined as terminal A positive with respect to
terminal B.
•
For unbalanced signals a "0"= low voltage is defined as terminal positive with respect to
GND.
Pinout on 26-pin HD connector J5
Standard
Pin
numb
V35 RS449
1 GND GND
2
3
4
5
6
7
8
9
10
11 SD (A) SD (A)
12 SD (B) SD (B)
13 RD (A) RD (A)
14 RD (B) RD (B)
15 SCR SCR(A)
(A)
16 SCR SCR(B)
(B)
17 SCT SCT(A)
(A)
18 SCT SCT(B)
(B)
19 GND GND
20 TR (A)
21 TR (B)
22 RLSD RR (A)
(CD)
23 GND RR (B)
(RLSD)
24 RI IC
25 LOS LOS
26 DTR
Signal
dir.
RS366 X21 RS366
GND GND
DPR Output
ACR Input
CRQ Output
PND Input
DLO Input
NB1 Output
NB2 Output
NB4 Output
NB8 Output
T (A) Output
T (B) Output
R(A) Input
R(B) Input
S(A) Input
S(B) Input
Input
Input
C(A) Output
C(B) Output
I (A) Input
I (B) Input
Input
Output
Output
Call control (menu
setting)
Data
Leased
trig.
line
Manual
Frame Ground (connected
to GND)
x Digit present
x Abandon Call & Retry
x Call Request
x Present Next Digit
x Data Line Occupied
x Digit bit 1
x Digit bit 2
x Digit bit 3
x Digit bit 4
x x x Send Data / Transmit
Send Data / Transmit
x x x
Receive Data
x x x
Receive Data
x x x
Signal Clock Receive /
x x x
Receive Timing
Signal Clock Receive /
x x x
Receive Timing
Signal Clock Transmit /
x x x
Send Timing
Signal Clock Transmit /
x x x
Send Timing
GND
x x Terminal Ready / Control
x x Terminal Ready / Control
x x Received Line Signal
Detector / Carrier Detect /
Receiver Ready /
Indication
x x Received Line Signal
Detector / Carrier Detect /
Receiver Ready /
Indication
Ring Indicator / Incoming
x
Call
x x Loss Of Signal
x x (Data) Terminal Ready
Glossary
Mnemonics
315