Technical Description
Sealevel Systems
ACB-MP.PCI
Page
5
V.35 Signals
Base+5, M3-M0=E, 1110
Signal
Name
DB-25
V.35
Mode
GND
Ground
7
B
RDB RX+
Receive Positive
16
T
Input
RDA RX-
Receive Negative
3
R
Input
TXCB TXC+
Transmit Clock Positive
12
AA
Input
TXCA TXC-
Transmit Clock Negative
15
Y
Input
RXCB RXC+
Receive Clock Positive
9
X
Input
RXCA RXC-
Receive Clock Negative
17
V
Input
TDB TX+
Transmit Positive
14
S
Output
TDA TX-
Transmit Negative
2
P
Output
TSETB TSET+
Transmit Signal Element
11
W
Output
TSETA TSET-
Transmit Signal Element Timing -
24
U
Output
CTS
Clear To Send
5
D
Input *
DSR
Data Set Ready
6
E
Input *
DCD
Data Carrier Detect
8
F
Input *
DTR
Data Terminal Ready
20
H
Output *
RTS
Request To Send
4
C
Output *
LL
Local Loop-back
18
Output *
RL
Remote Loop-back
21
Output.*
•
Note:
All modem control signals are single ended (un-balanced) with RS-232 signal levels.
RS-530 (RS-422)
Base+5, M3-M0=D, 1101
Signal
Name
Pin #
Mode
GND
Ground
7
RDB RX+
Receive Positive
16
Input
RDA RX-
Receive Negative
3
Input
CTSB CTS+
Clear To Send Positive
13
Input
CTSA CTS-
Clear To Send Negative
5
Input
DCDB DCD+
Data Carrier Detect Positive
10
Input
DCDA DCD-
Data Carrier Detect Negative
8
Input
TXCB TXC+
Transmit Clock Positive
12
Input
TXCA TXC-
Transmit Clock Negative
15
Input
RXCB RXC+
Receive Clock Positive
9
Input
RXCA RXC-
Receive Clock Negative
17
Input
TDB TX+
Transmit Positive
14
Output
TDA TX-
Transmit Negative
2
Output
RTSB RTS+
Request To Send Positive
19
Output
RTSA RTS-
Request To Send Negative
4
Output
DTRB DTR+
Data Terminal Ready Positive
23
Output
DTRA DTR-
Data Terminal Ready Negative
20
Output
TSETB TSET+
Transmit Signal Element Timing Positive
11
Output
TSETA TSET-
Transmit Signal Element Timing Negative
24
Output
DSRB DSR+
Data Set Ready Positive
22
Input
DSRA DSR-
Data Set Ready Negative
6
Input
LL
Local Loopback
18
Output
RL
Remote Loopback
21
Output
