Cable specification,
continued..
Applies to Cisco TelePresence MXP and TANDBERG Classic
Endpoints that supports 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.
Pin-Out on 26-pin HD Connector J5
Pin
No
Standard
Signal
Dir.
Call Control (menu settings)
Mnemonics
V35
RS449
RS366
X21
RS366
Leased
Line
Data
Trig.
Manual
1
GND
GND
GND
GND
Frame Ground (connected to GND)
2
DPR
Output
x
Digit present
3
ACR
Input
x
Abandon Call & Retry
4
CRQ
Output
x
Call Request
5
PND
Input
x
Present Next Digit
6
DLO
Input
x
Data Line Occupied
7
NB1
Output
x
Digit bit 1
8
NB2
Output
x
Digit bit 2
9
NB4
Output
x
Digit bit 3
10
NB8
Output
x
Digit bit 4
11
SD (A)
SD (A)
T (A)
Output
x
x
x
Send Data / Transmit
12
SD (B)
SD (B)
T (B)
Output
x
x
x
Send Data / Transmit
13
RD (A)
RD (A)
R (A)
Input
x
x
x
Receive Data
14
RD (B)
RD (B)
R (B)
Input
x
x
x
Receive Data
15
SCR
(A)
SCR (A)
S (A)
Input
x
x
x
Signal Clock Receive / Receive Timing
16
SCR
(B)
SCR (B)
S (B)
Input
x
x
x
Signal Clock Receive / Receive Timing
17
SCT
(A)
SCT (A)
Input
x
x
x
Signal Clock Transmit / Send Timing
18
SCT (B)
SCT (B)
Input
x
x
x
Signal Clock Transmit / Send Timing
19
GND
GND
GND
20
TR (A)
C (A)
Output
x
x
Terminal Ready / Control
21
TR (B)
C (B)
Output
x
x
Terminal Ready / Control
22
RLSD
(CD)
RR (A)
I (A)
Input
x
x
Received Line Signal Detector / Carrier
Detect / Receiver Ready / Indication
23
GND
(RLSD)
RR (B)
I (B)
Input
x
x
Received Line Signal Detector / Carrier
Detect / Receiver Ready / Indication
24
RI
IC
Input
x
Ring Indicator / Incoming Call
25
LOS
LOS
Output
x
x
Loss Of Signal
26
DTR
Output
x
x
(Data) Terminal Ready
125
Cisco TelePresence MXP Series
Administrator guide
D14791.01 MXP Series Administrator Guide F90, August
2011.
Copyright © 2010-2011 Cisco Systems, Inc. All rights reserved.
www.cisco.com
Contents
Contact us
Introduction
The menu structure
The settings library
Getting started
Appendices
Appendices
