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© Sealevel Systems, Inc.
3612 Manual | SL9115 9/2021
Technical Description, continued
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
