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RS232/RS485 - Interface-Converter:
General information:
The GRS485 is a bi-directional interface converter RS232 <-> RS485, for the connection of up to 16 GIA10
or GIA1000/GIR1002 to the serial interface of your PC.
Signals are transmitted in "half-duplex"-mode, with the RTS-line of the RS232-interface being used to
activate the transmitter. The receiver is always active. ("ECHO"-mode).
Specification:
Supply voltage:
Working temperature:
Storage temperature:
Relative atmosph. humidity: 0 to 80 % r.h. (non condensing)
Dimensions:
EMC:
RS485:
Transmission mode:
Connection:
Connection cable:
Length of line:
Baud rate:
RS232:
Connection:
Operating modes:
Pin assignment:
GRS485
12 V DC / 300mA
by means of power pack
0 to 50°C
-20 to 70°C
50 x 65 x 30 mm (W x L x H; housing only)
The devices correspond to the essential protection ratings established in the
Regulations of the Council for the Approximation of Legislation for the member
countries regarding electromagnetic compatibility (89/336/EWG)
Tested in accordance with EN50081-1 and EN50082-1 for unlimited use in
commercial and residential areas.
half-duplex
2pin screw-type/plug-in terminal: PHOENIX: MC1,5/2-ST-3,81,
max. terminal range: 1.5mm²
2-pin, twisted (recommended)
max. 1000 meters
max. 9600 Baud
25 pin Dsub-bushing, with approx. 30cm cable.
(can be directly connected to the 25pin
Dsub-connector of your PC)
transmitter active if RTS high (U > 3V)
Receiver: always active ("Echo")
Dsub 9 Dsub 25
3 ----- 2
2 ----- 3
7 ----- 4
8 ----- 5
5 ----- 7
6 ----- 6
4 ----- 20
_
+
(incl. in scope of supply)
TxD
RxD
RTS
GND
S19.0.01.6C-03
: 220 - 240 V AC / 50 - 60 Hz
GRS485
Schnittstellenadapter RS485 -
RS2 32
RS485
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Summary of Contents for GREISINGER GRS485
- Page 1 GRS485 General information: The GRS485 is a bi-directional interface converter RS232 <-> RS485, for the connection of up to 16 GIA10 or GIA1000/GIR1002 to the serial interface of your PC. Signals are transmitted in "half-duplex"-mode, with the RTS-line of the RS232-interface being used to activate the transmitter.
- Page 2 Then connect the interface converter to the RS232-interface of your PC. (In case your PC is not equipped with a 25-pin Dsub-connector or in case it has already been assigned, the GRS485 can also be connected to a 9-pin Dsub-connector via any commercial adapter.) If the interface converter GRS485 is not handled properly, the converter itself or the devices connected may be subject to damage.
- Page 3 S19.0.01.6C-03 swapping. The control of the RTS signal by the user’ s application software is not needed. Therefore the use of standard terminal programs is possible.
- Page 4 S19.0.01.6C-03 Saftey advice: This device has been designed and tested in accordance with the safety regulations for electronic devices. However, its trouble-free operation and reliability cannot be guaranteed unless the standard safety measures and special safety advises given in this manual will be adhered to when using the device. 1.
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