Appendix 4 Using NT-AL001 Converters
A-4-3 Specifications
The general specifications and communications specifications of the converter unit 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% (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 MΩ or higher, measured between all RS-422A terminal signal lines
collectively and functional ground terminal with a 500 VDC Megger Tester.
Dielectric strength 1500 VAC for 1 minute between all RS-422A terminal signal lines collec-
tively and functional ground terminal
Leakage current: 10 mA max.
Operating environ-
ment
No corrosive gases
Storage ambient
temperature
−20 to 75°C
Vibration resistance Conforms to JIS C0911 60 minutes in each of X, Y, and Z directions
Shock resistance Conforms to JIS C0912 147m/s
2
, 3 times in each of X, Y, and Z directions
Communications Specifications
RS-232C Interface
Item Specification
Communications speed 115.2k max. bps
Transmission distance 2 m max.
Connector 9-pin D-SUB connector (female)
RS-422A/485 Interface
Item Specification
Communications speed 115.2k max. bps (depends on the RS-232C communications speed)
Transmission distance 500 m max.
Connector 8-terminal detachable terminal block, M3.0
A-27
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