16
© Sealevel Systems, Inc.
RELIO R2 SYNC Manual | SL9255 10/2021
RS-485 or RS-485T
Base+5, M3-M0=4, 0100 (With termination)
Base+5, M3-M0=5, 0101 (Without termination)
Pin #
Signal
Name
Mode
2
TDA TX
–
Transmit Negative
Output
3
RDA RX
–
Receive Negative
Input
7
GND
Ground
9
RXCB RXC+
Receive Clock Positive
Input
11
TSETB TSET+
Transmit Signal Element
Output
12
TXCB TXC+
Transmit Clock Positive
Input
14
TDB TX+
Transmit Positive
Output
15
TXCA TXC
–
Transmit Clock Negative
Input
16
RDB RX+
Receive Positive
Input
17
RXCA RXC
–
Receive Clock Negative
Input
24
TSETA TSET
–
Transmit Signal Element Timing
–
Output
