Serial Connections
Manual Documentation Number: Zlinx485m-1808
www.bb-elec.com
www.bb-europe.com
A
A
p
p
p
p
e
e
n
n
d
d
i
i
x
x
C
C
:
:
S
S
e
e
r
r
i
i
a
a
l
l
C
C
o
o
n
n
n
n
e
e
c
c
t
t
i
i
o
o
n
n
s
s
RS-232 Pinouts
RJ-45F
Pin
Signal RS-232
DCE
1 Signal
Ground
GND
---
2 Signal
Ground
GND
---
3
Receive Data
RD
IN
4
Transmit Data
TD
OUT
5
Clear to Send
CTS
IN
6
Request to Send
RTS
OUT
7 Not
Used
---
---
8 Not
used
---
---
Figure 38. RS-232 Connections for RJ45 type plug
Note: PIN 4 (RTS) is reserved for the configuration software only. Asserting RTS during normal operation will result in a
communication failure. Disable RTS if your hardware supports it
RJ45 Male to RS-232 Female Pinout