ARB-0612
Tab. 2.2.1. Description of ARB-0612 converter connector type
Name of the
connector
Description
RS232
Socket DB9 RS232
RS422
Separable terminal block 2,5 mm
2
RS485
Separable terminal block 2,5 mm
2
USB
USB type B connector
Tab. 2.2.2. Description of the function of connectors, dip-switch and LED indicators
Male socket
Pin number
Description
1
DCD
2
RXD
3
TXD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
RI
Terminal number
Description
10
B* (D-) Rx- RS422/RS485-4W lub B(D-) RS485-1
11
A* (D+) Rx+ RS422/RS485-4W lub A(D+) RS485-1
12
B* (D-) Tx- RS422/RS485-4W lub B(D-) RS485-2
13
A* (D+) Tx+ RS422/RS485-4W lub A(D+) RS485-2
The pin number of the
dip-switch
Description
1÷4
Line terminating resistors RS422/RS485-
4W/RS485**
5
Level selection of TTL 3,3V/5V
6
RS422/RS485-4W or RS485***
LED indicators
Description
DL(green)
The LED indicates receiving data via RS ports
PWR(red)
The LED indicates the power supply from USB
UL(yellow)
The LED indicates data sending via RS ports
*
- A denotes the D + line, B denotes the D - line.
** - switch operations must be carried out in pairs.
*** - OFF position - active RS485; ON position - active RS422 / RS485-4W.
10/2018
ARB-0612_v1_01
7
