Impulse 5102 User Manual
Page 8
© Sealevel Systems, Inc.
- 6 -
ACB-MP.PCI User Manual
Interface Selection
The ACB-MP.PCI supports a variety of electrical interfaces. Refer to the Control
and Status Register Definitions found in the Technical Description section of this
manual for this bit description. There is line termination on RXD, RXC, and TXC in
the following modes: RS-530, RS-530A, RS-485T, and V.35.
HEX M3 M2 M1 M0
Interface
Mode
0 0 0 0 0
All signals are high impedance
1
0
0
0
1
* not supported *
2 0 0 1 0
RS-232
3
0
0
1
1
* not supported *
4 0 1 0 0
RS-485T with 120
Ω termination
5 0 1 0 1
RS-485 without termination
6,7,8,9
0
1
1
0
* not supported *
A 1 0 1 0
single ended loopback
B 1 0 1 1
differential loopback
C
1
1
0
0
* not supported *
D 1 1 0 1
RS-530
E 1 1 1 0
V.35
F 1 1 1 1
RS-530A
DB-25M Connector Pin Outs
RS-232 Signals
Base+5, M3-M0=2, 0010
Pin #
Signal
Name
Mode
2 TD
Transmit
Data
Output
3 RD
Receive
Data
Input
4 RTS
Request
To
Send
Output
5
CTS
Clear To Send
Input
6
DSR
Data Set Ready
Input
7 GND
Ground
8 DCD
Data
Carrier
Detect
Input
15 TXC
Transmit
Clock
Input
17 RXC
Receive
Clock
Input
18 LL
Local
Loopback
Output
20
DTR
Data Terminal Ready
Output
21 RL
Remote
Loopback
Output
24
TSET
Transmit Signal Element Timing
Output
25 TM
Test
Mode
Input