HD1490 HD Encoder Frame Card
B
Serial Port Connector
The BP111 and BP121 rear modules both contain a single IDC-10 con-
nector, providing the interface for RS-232 serial ports P1 and P2. The
following image and table describe the pin mapping from the IDC-10
connector to the two DB9 connectors that can be used to communicate
with ports P1 and P2:
IDC
DB9, P1
DB9, P2
1
2
2
3
3
4
5
5
6
7
2
8
3
9
10
5
The pin assignments of a DB9 connector are as follows:
Pin
DB9 Adapter
1
2
Tx
3
Rx
4
5
Ground
6–9
These ports can be connected directly to a standard PC serial port with
a 9–pin, 3–wire straight serial cable. A ’null modem’ cable MAY NOT be
used for this purpose as it will reverse the connections of pins 2 and 3.
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