4-22
Computer Group Literature Center Web Site
Connector Pin Assignments
4
Serial Ports 1-4
For the MVME2603/2604, the interface for asynchronous ports 1 and 2
and for synchronous/asynchronous ports 3 and 4 is implemented with four
EIA-232-D DB25 connectors (J7-J10) located on the front panel of the
MVME712M transition module. The pin assignments for serial ports 1-4
on the MVME712M are listed in the following table.
Table 4-12. Serial Connections—MVME712M Ports 1-4
1
No Connection
2
ETxDn
3
ERxDn
4
ERTSn
5
ECTSn
6
EDSRn
7
GND
8
EDCDn
9
No Connection
10
No Connection
11
No Connection
12
No Connection
13
No Connection
14
No Connection
15
ERTxC (Port 4 only)
16
No Connection
17
ERRxC (Port 4 only)
18
No Connection
19
No Connection
20
EDTRn
21
No Connection
