ABB EDS500 Series Operating Instructions Manual

Operating instruction Operating instruction
Modem 50-2400 baud 500FSD20 Modem 50-2400 baud 500FSD20
EDS500 series - FSK modems EDS500 series - FSK modems
Application, characteristics and technical data have to
be taken from the hardware data sheet:
500FSD20 Data sheet 1KGT150986
Operation
The 500FSD20 modem is a voice-frequency telegraphy
unit (VFT unit) which operates according to the
principle of binary frequency shift keying. The modem
can operate in two- and four-wire connection. The
mode of operation is set by a command line interface
(CLI).
Connections
Power connector (X1)
The EDS500 devices are equipped with a wide range
power supply for voltages between 24 and 60 Volts DC
(power consumption see device label). The connector
is a 3-pin Phoenix plug with screw terminals.
Pin allocation power supply (X1)
1
Due to the internal overvoltage protection,
interrupt any connection to ground of the device
for the time of the measurement before you carry
out isolation measurements. This includes the
earthing of the hat rail as well as all shields of all
transmission lines and supply feedings. RJ-12 plugs
or RJ-45 plugs can also establish earthing via the
shield.
Serial interface to DTE (X2)
The RJ-45 connector X2 forms an RS-232-D interface. If
the modem is connected to an RTU, an adapter cable
has to be used which connects the pin pairs.
Pin allocation serial interface DTE (RJ-45)
Pin Signal
2 3
1 24-60 V DC
2 Functional earth
3 GND
A D V I C E
RS-232-D
Pin Signal
V.24
8 1
1 DSR M1
Pin allocation serial interface DTE (RJ-45)
Interface to transmission line (X3)
In two-wire mode X3-1 and X3-2 form terminal NF1
which is used for transmission and reception.
In four-wire mode X3-1 and X3-2 form the transmitter
terminal NF1 and X3-3 and X3-4 form the receiver pair
NF2.
NF terminals
2-wire
4-wire
Pin allocation transmission line interface (X3)
1
Serial interface for configuration (Con0)
The serial interface of the device is signal compatible
to RS-232. The connector is an RJ-12 female plug. The
factory presets are speed 57600 Baud, no parity, 1
stop bit, no flow control. Via the serial interface the
management console can be accessed .
Pin allocation serial interface RS-232 (RJ-12)
Signal Direction
V.28
107 output
2 DCD M5
3 DTR S1
4 GND
5 RxD C2
6 TxD D1
7 CTS M2
8 RTS S2
Transmit
NF1: X3-1 and X3-2
NF1: X3-1 and X3-2
Pin Signal
1 NF1a
2 NF1b
3 NF2a
2 3 4
4 NF2b
RS-232
Pin Signal Direction Pin Signal Direction
1 DCD Output
2 CTS Output
3 RTS Input
6 1
4 GND -
5 RxD Output
6 TxD Input
109 output
108.2 input
GND -
104 output
103 input
106 output
105 input
Receive
NF1: X3-1 and X3-2
NF2: X3-3 and X3-4
RS-232 PC SUB-D9
1 DCD Input
8 CTS Input
7 RTS Output
5 GND -
2 RxD Input
3 TxD Output