User guide

Technical Description
Sealevel Systems PC-ACB.MP 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 Timing + 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 *
• 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