Rs232C/Rs485 Converter Fc2A-Md1 - IDEC FC4A-C10R2 User Manual

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OMPUTER INK

RS232C/RS485 Converter FC2A-MD1

The RS232C/RS485 converter FC2A-MD1 is used to convert data signals between EIA RS232C and EIA RS485. This
converter makes it possible to connect a host device with RS232C interface to multiple
one cable.
RS485
Signal Level
Parts Description
RS485 I/O
Termination Resistor
Transmit/Receive Data A
Transmit/Receive Data B
Signal Ground
Frame Ground
Vcc (+24V)
Note: Connect 24V DC to POWER SUPPLY + and – terminals or connect an AC adapter with 9V DC, 350mA output to the AC
adapter jack.
Note: The FC2A-MD1 contains a 220Ω termination resistor on the RS485 line, eliminating the need for an external termi-
nation resistor. To use the internal termination resistor, connect terminal T to terminal B. When the termination resistor is
not needed, disconnect terminal T from terminal B.
Specifications
General Specifications
Rated Power Voltage
Current Draw
Operating Temperature
Storage Temperature
Operating Humidity
Vibration Resistance
Shock Resistance
Dielectric Strength
Insulation Resistance
Noise Resistance
Weight
Serial Interface Specifications
Standards in Compliance
Communication Method
Communication Configuration
Communication Cable
Communication Baud Rate
Slave Stations
Maximum Cable Length
26-4
C
OMMUNICATION
Converter
RS485
RS232C/RS485
SERIAL PORT
CONVERTER
1
Type FC2A-MD1
T
2
A
3
B
4
SG
5
FG
6
+
POWER SUPPLY
24V DC
7
GND
–
DC IN
AC Adapter Jack
Power terminals:
DC IN adapter jack:
Power terminals: Approx. 40 mA at the rated voltage
0 to 60°C
–20 to +70°C
45 to 85% RH (no condensation)
5 to 55 Hz, 60 m/sec
300 m/sec
1500V AC, 1 minute between live parts and dead parts
10 MΩ minimum between live parts and dead parts (500V DC megger)
Power terminals: ±1 kV, 1 µs (using noise simulator)
Approx. 550g
EIA standard RS232C (D-sub 25-pin female connector)
EIA standard RS485 (screw terminals)
Half-duplex
1:N (N ≤ 32)
Shielded twisted-pair cable
9600 bps (fixed)
32 slave stations maximum (RS485 line)
RS232C: 15m (49.2 ft.)
RS485:
« FC4A M
RS232C
Signal Level
Power Indicator
Goes on when power is supplied
POWER
Transmit Data Indicator
SD
Goes on when RS232C transmit data (pin #2) is on
RD
Receive Data Indicator
Goes on when RS232C receive data (pin #3) is on
RS232C I/O
Connect to the RS232C port on the computer
24V DC ±20% (ripple 10% maximum)
9V DC, 350mA supplied from AC adapter
2
, 2 hours each in 3 axes
2
, 3 shocks each in 3 axes
Total 200m (656 ft.)
S U ' M
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