User Manual

© Sealevel Systems, Inc.
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ACB-ULTRA.LPCI User Manual
RS-485 or RS-485T
Base+5, M3-M0=4, 0100 (With termination)
Base+5, M3-M0=5, 0101 (Without termination)
Signal Name Pin
#
Mode
GND Ground 7
RDB RX+ Receive Positive 16 Input
RDA RX- Receive Negative 3 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
TSETB TSET+ Transmit Signal Element Timing Positive 11 Output
TSETA TSET- Transmit Signal Element Timing Negative 24 Output
LL Local Loop-back 18 Output
RL Remote Loop-back 21 Output
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