2
Speed:
64,000 bps, max.
Connectors:
RS-232 port: DB25
female;
RS-422 port: DB37 female
Indicators:
7 LEDs show status of
RS-232 and RS-422 signals and
indicate power ON. RS-232 port:
DSR, CTS, DATA; RS-422 port:
DSR, CTS, DATA
Controls:
RS-232 port: DTE/DCE DIP
shunts;
RS-422 port: DTE/DCE DIP shunts;
Slide switch to enable receiver
termination
Temperature:
Storage: -4 to +158°F
(-20 to +70°C);
Operating: 32 to 122°F (0 to 50°C)
Power:
115 VAC supply: ±10%,
100 mA;
230 VAC supply: ±10%, 50 mA
Size:
Standalone: 2.3"H x 8"W x
11.9"D (5.8 x 20.3 x 30.2 cm);
Rackmount: 1.2"H x 7.5"W x 11.4"D
(3 x 19.1 x 29 cm)
Weight:
Standalone: 2 lb. (0.9 kg);
Rackmount: 10 oz. (283.5 g)
The converter is easy to set for DCE or DTE operation. Simply install
the DIP shunts in the correct sockets on the circuit board.
One configuration is for connecting RS-422 DCE to RS-232 DTE. The
other configuration is for connecting RS-232 DCE to RS-422 DTE.
There is also a receiver termination switch on the circuit board. It
has a termination switch to insert 120-ohm resistance between the
receive data input leads. To enable termination, set the switch to the ON
position. To disable termination, set the switch to the OFF position.
Technically Speaking
• RS-232 Cable
• RS-442/449 Cable
• Modem eliminator if you want to connect two DTEs together
through the converter
• Cross-over cable if you want to connect two DCEs together
through the converter
Additional equipment you may need
Specifications
Ordering Information
ITEM
CODE
RS-232
↔
RS-422 Interface Converter
115 VAC .................................................................IC456A-R5
230 VAC...............................................................IC456AE-R3
Card........................................................................IC456C-R5
You may also need cable…
RS-232 Cable ...............................................................ECM25C
RS-442/449 Cable ........................................................EDN37J
Connect your RS-232 equipment to your RS-422/449 equipment via the converter.
Modem or other
DCE device
RS-422 Device
4 (T-)
6 (R-)
24 (R+)
22 (T+)
R+
T-
T+
R-
RS-232
↔
422
Interface Converter
DIP-shunt
settings:
DCE DTE
Straight cable
