Using an RS-232C/RS-422A Adapter

Appendix C

Specifications

The general specifications and communications specifications of the Adapter are shown below.

General Specifications

 

Item

Specification

 

 

 

 

Dimensions

30 (W) 114 (H) 100.2 (D) mm: with the RS-422A terminal block cover closed

 

 

30 (W) 114 (H) 119.5 (D) mm: with the RS-422A terminal block cover open

 

 

 

 

Weight

200 g max.

 

 

 

 

Operating ambient temperature

0 to 55°C

 

 

 

 

Operating ambient humidity

10 to 90% RH (with no condensation)

 

 

 

 

Rated power supply voltage

+5 V ± 10% (using pin No. 6 of the RS-232C connector)

 

 

 

 

Rated power supply current

150 mA max.

 

 

 

 

Rush current

0.8 A max.

 

 

 

 

Insulation resistance

20 Mor higher, measured between all RS-422A terminal signal lines collectively and

 

 

functional ground terminal at 500 VDC

 

 

 

 

Dielectric strength

1500 VAC for 1 minute between all RS-422A terminal signal lines collectively and

 

 

functional ground terminal

 

 

Leakage current: 10 mA max.

 

 

 

 

Operating environment

No corrosive gases

 

 

 

 

Storage ambient temperature

20 to +75°C

 

 

 

 

Vibration resistance

10 to 57 Hz with 0.075-mm single amplitude and 57 to 150 Hz at 9.8 m/s2 for 60 min-

 

 

utes each in X, Y, and Z directions

 

 

 

 

Shock resistance

147 m/s2 3 times each in X,Y, and Z directions

 

Communications Specifications

 

RS-232C Interface

 

 

 

 

 

Item

Specification

 

 

 

 

Communications speed

Max. 64k bps

 

 

 

 

Transmission distance

Max. 2 m

 

 

 

 

Connector

9-pin D-SUB connector (female)

 

 

 

 

RS-422A/485 Interface

 

 

 

 

Item

Specification

 

 

 

 

Communications speed

Max. 64k bps (depends on the RS-232C communications speed)

 

 

 

 

Transmission distance

Max. 500 m

 

 

 

 

Connector

8-terminal detachable terminal block, M3.0

 

 

 

DIP Switch Settings

The Adapter has 6 digits DIP switch for setting the RS-422A/485 communications conditions. Before connecting the cable to the Adapter, make the DIP switch settings.

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Omron NT631C manual Specifications, DIP Switch Settings