Impulse SIO4-104.485 (3543) User Manual
Page 11
Advertising
![background image](/manuals/335935/11/background.png)
© Sealevel Systems, Inc.
- 9 -
SIO4-104.485 User Manual
Physical Connection
The port signals for the SIO4-104.485 are physically connected via a 40-pin box header.
The following table shows connector P4’s pin-out.
Port
P4
Signal Name RS-422
Signal Name RS-485
1 RX4+
DATA4+
3 RX4
-
DATA4-
5 TD4
-
7 TD4+
4
9 GND4
GND4
10 GND3
GND3
12 TD3+
14 TD3-
16 RX3-
DATA3-
3
18 RX3+
DATA3+
19 RX2+
DATA2+
21 RX2-
DATA2-
23 TD2-
25 TD2+
2
27 GND2
GND2
28 GND1
GND1
30 TD1+
32 TD1-
34 RX1-
DATA1-
1
36 RX1+
DATA1+
All pins not listed are no connects.
Advertising