Table B-8: Pin Assignments For Eia Rs-449 Network Data Port Using A Belden 9737 Cable - PictureTel Concorde 4500 Servicing Manual

PIN ASSIGNMENTS
Pin
1
3, 21
4, 22
5, 23
6, 24
7, 25
8, 26
9, 27
11, 29
12, 30
13, 31
15
17, 35
19
20
37
B-12
The following table lists the pin assignments for the EIA RS-449
network interface using a Belden 9737 cable.
Table B-8: Pin Assignments for EIA RS-449 Network Data Port
Using a Belden 9737 Cable
Function
Ground Shield
1
EC +, EC - Concorde¥4500
Concorde¥4500
SD +, SD -
DCE
ST +, ST -
DCE
RD +, RD -
Concorde¥4500
RTS +, RTS -
DCE
RT +, RT -
DCE
CTS +, CTS -
DM +, DM - DCE
Concorde¥4500
DTR +, DTR -
DCE
RR +, RR -
DCE
IC
TT +, TT - Concorde¥4500
DCE
SG
DCE
RC
SC Concorde¥4500
Instead of the recommended Belden 9737, you can use a Belden 9731
(or equivalent) to provide limited function in the following
situations:
Source Description
Protective ground
Encrypter control
Send data
Send timing
Receive data
Request to send
Receive timing
Clear to send
Data mode
Data terminal
ready
Receiver ready
Incoming call
Terminal timing
Signal ground
Receive common
Send common