Front serial connection, Rear serial connection (diag port), How to make a front serial connection – Grass Valley UniConfi NVISION Series v.2.1 User Manual
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Communication
Communication
Front Serial Connection
(Front serial connections apply only to routers with EM0374 control cards.)
Make a connection between the router and UniConfig. Run a cable from your PC’s serial port to
the DE9 serial port located on the front of the control card. This connection is set to a fixed rate
of 9600
Baud. (The protocol is RS-232, 8N1, meaning 8 data bits, no parity, and 1 stop bit).
How to Make a Front Serial Connection
1 Open the router door and locate the control card.
2 Run a straight-through serial cable from your PC’s serial port to the DE9 connector at the
front of the control card.
If your PC does not have a serial port, you’ll need a USB-to-serial adapter for the cable. See
3 Close the router door as much as possible. The router might overheat if you leave the door
open.
4 Set up serial communication in UniConfig. That is, choose serial mode and set the RS-232
settings to 9600. See
Changing UniConfig’s Serial Communication Parameters
5 Read the control card configuration from the router. See
Reading a Control Card’s Configura-
on page 25. If the read is successful, your serial connection is good.
(If the read is not successful, you will need to diagnose and correct the problem. The prob-
lem could be a faulty cable or that you have used a crossover cable by mistake. The problem
might lie in UniConfig: its Baud rate not set to 9600, the wrong COM port or the wrong con-
nector chosen.)
6 Be sure to close the router door again when you have finished with its control cards.
Rear Serial Connection (DIAG Port)
(The serial connection for routers with EM0529 control cards or EM0666 control cards must be
made through the DIAG connectors at the rear of the router.)
(It is your option, after you have initially set up a router having an EM0374 control card, to access
the control card through its rear DIAG port.)
There are two serial ports located on the router, labeled ‘DIAG’. One is for the primary
1
control
card and the other is for the secondary control card. By default, these ports are set to 38400
Baud, RS-232, but can be changed to RS-422 in UniConfig. Do not change them to RS-422.
1. The terms “primary” and “secondary” mean nothing more than to distinguish the two control cards.