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V.35 Signals (continued)
DCD
Data Carrier Detect
RI
Ring Indicator
DTR
Data Terminal Ready
RTS
Request To Send
LL
Local Loop-back
RL
Remote Loop-back
* Note: All modem control signals are single ended (un-balanced) with RS-232
signal levels.
RS-530 (RS-422)
DIP-Switch SW2-2 or Base+5, M3-M0=D, 1101
Signal
GND
Ground
RDB RX+
Receive Positive
RDA RX-
Receive Negative
CTSB CTS+
Clear To Send Positive
CTSA CTS-
Clear To Send Negative
DCDB DCD+
Data Carrier Detect Positive
DCDA DCD-
Data Carrier Detect Negative
TXCB TXC+
Transmit Clock Positive
TXCA TXC-
Transmit Clock Negative
RXCB RXC+
Receive Clock Positive
RXCA RXC-
Receive Clock Negative
TDB TX+
Transmit Positive
TDA TX-
Transmit Negative
RTSB RTS+
Request To Send Positive
RTSA RTS-
Request To Send Negative
DTRB DTR+
Data Terminal Ready Positive
DTRA DTR-
Data Terminal Ready Negative
TSETB TSET+
Transmit Signal Element Timing Positive
TSETA TSET-
Transmit Signal Element Timing Negative
DSR is not available on the card as shipped but can be enabled by placing a
0-ohm resistor at R30 and removing the 0-ohm resistor at R31. This will
disable the use of Ring Indicator on RS-232, V.35, and RS-530A. In this mode
the following signals are supported.
DSRB DSR+
Data Set Ready Positive
DSRA DSR-
Data Set Ready Negative
RS-530A
DIP-Switch SW2-3 or Base+5, M3-M0=F, 1111
Sealevel Systems ROUTE 56
Technical Description
8
22
20
4
18
21
Name
F
Input *
J
Input *
H
Output *
C
Output *
Output *
Output.*
Pin #
Mode
7
16
Input
3
Input
13
Input
5
Input
10
Input
8
Input
12
Input
15
Input
9
Input
17
Input
14
Output
2
Output
19
Output
4
Output
23
Output
20
Output
11
Output
24
Output
22
Input
6
Input
Page 12
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