Appendices

Appendix 20: 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

 

 

Call control (menu

Mnemonics

Pin

 

 

Signal

 

setting)

 

 

 

 

 

 

 

 

numb

 

 

 

 

dir.

 

Leased

Data

 

V35

RS449

RS366

X21

RS366

trig.

 

 

 

line

 

 

 

 

 

 

 

 

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

SCR(A)

 

S(A)

Input

x

x

x

Signal Clock Receive /

 

(A)

 

 

 

 

Receive Timing

 

 

 

 

 

 

 

 

16

SCR

SCR(B)

 

S(B)

Input

x

x

x

Signal Clock Receive /

 

(B)

 

 

 

 

Receive Timing

 

 

 

 

 

 

 

 

17

SCT

SCT(A)

 

 

Input

x

x

x

Signal Clock Transmit /

 

(A)

 

 

 

 

Send Timing

 

 

 

 

 

 

 

 

18

SCT

SCT(B)

 

 

Input

x

x

x

Signal Clock Transmit /

 

(B)

 

 

 

 

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

RR (A)

 

I (A)

Input

x

x

 

Received Line Signal

 

(CD)

 

 

 

 

 

 

 

Detector / Carrier Detect /

 

 

 

 

 

 

 

 

 

Receiver Ready /

 

 

 

 

 

 

 

 

 

Indication

23

GND

RR (B)

 

I (B)

Input

x

x

 

Received Line Signal

 

(RLSD)

 

 

 

 

 

 

 

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

309

Page 323
Image 323
TANDBERG 6000 MXP user manual Appendix 20 Cable Specifications, External Network Pinout