Learn about the specifications for the 8-Port asynchronous EIA-232E/RS-422A
PCI Adapter.
The 8-Port asynchronous EIA-232E/RS-422A PCI adapter is a multi-channel
intelligent serial communications feature that supports speeds of up to 230
Kbps for each asynchronous port and is run by a 32-bit, 20 MHz, IDT 3041 processor.
Figure 1. Feature 2943
Figure 2. Feature 2943 connector
8-Port asynchronous EIA-232E/RS-422A PCI
Adapter specifications
- Item
- Description
- FRU number
- 93H6541 (Not designed to comply
with RoHS requirement.)
- I/O bus
- PCI
- Bit rate
- 50 - 230,000 (set by the program)
- Bits for each character
- 5, 6, 7, 8 (set by the program)
- Busmaster
- No
- Maximum number
- 8
- Connector
- 78-pin D-shell female
- Wrap plug
- EIA-232 25-pin, part number 6298964. This wrap plug tests all of the adapter
functions for both EIA-232 and RS-422.
- Cable
- 8-Port DB-25 connector box, part number 11H5967 included with adapter
- Modem cable
- EIA-232 modem cable, part number 6323741, feature code 2936, length 3
meters or 10 feet
- RS-422 modem cable, customer supplied (must meet RS-422 requirements)
- Terminal/printer cable
- EIA-232 terminal/printer cable, part number 12H1204, feature code 2934,
length 3 meters or 10 feet
- RS-422 terminal/printer cable, part number 30F8966, feature code 2945,
length 20 meters or 66 feet
If
you are installing a new feature, ensure that you have the software
required to support the new feature and that you determine if there
are any existing prerequisites. To do this, use
the IBM® Prerequisite Web site
at http://www-912.ibm.com/e_dir/eServerPrereq.nsf 
.
8-Port EIA-232E/RS-422A Adapter 78-position
and 25-position connectors
The 8-Port asynchronous EIA-232E/RS-422A
PCI adapter is shipped with a connector box that provides eight 25 pin D-shell
standard connectors.
Figure 3. 25 pin D-shell standard connectors
| Mnemonic EIA-232E/ RS-422A |
I/O |
Port 0 |
Port 1 |
Port 2 |
Port 3 |
Port 4 |
Port 5 |
Port 6 |
Port 7 |
25-Position Connector |
|---|
| TxD/TxDb |
O |
30 |
50 |
11 |
10 |
40 |
02 |
63 |
64 |
02 |
| RxD/RxDb |
| |
55 |
17 |
37 |
56 |
28 |
08 |
46 |
27 |
03 |
| RTS/TxDa |
O |
51 |
31 |
12 |
14 |
21 |
41 |
62 |
60 |
04 |
| CTS/RxDa |
| |
16 |
53 |
59 |
57 |
25 |
04 |
09 |
45 |
05 |
| DCD/DCD |
| |
35 |
33 |
39 |
18 |
43 |
23 |
48 |
06 |
08 |
| DTR/DTR |
O |
49 |
32 |
13 |
52 |
22 |
03 |
61 |
01 |
20 |
| DSR/DSR |
| |
54 |
34 |
58 |
38 |
05 |
42 |
29 |
26 |
06 |
| RI/NA* |
| |
36 |
15 |
20 |
19 |
44 |
24 |
47 |
07 |
22 |
| SGND** |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
-- |
07 |
| FGND |
|
|
|
|
|
|
|
|
|
01, Cable Shield |
Notes: - * = RTS is wrapped internally to CTS and RI for each port in RS-422
- ** = Pins 65 through 78 are ground
|
Subscribe to this information
