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Wiring For Anywire Db A20; Transmission Distance; Terminator Connection - Mitsubishi Electric MELSEC-I/OLINK Handbook

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2
PERFORMANCE SPECIFICATIONS COMPARISONS

2.2 Wiring for AnyWire DB A20

2.2.1 Transmission distance

Item
Transmission clock
Max. transmission distance
(total length)
Number of connectable modules
*1
When setting the transmission clock at 125kHz using the QJ51AW12D2 with a serial number (sixth digit) 5 or earlier, use
the product under the following conditions.
• External power supply voltage range: 21.6VDC to 25.2VDC
• Operating ambient temperature: 0 to 50°C
*2
Up to 64 modules can be connected within 2km.

2.2.2 Terminator connection

To ensure more stable transmission, connect the terminating resistor (AT2 manufactured by Anywire
Corporation) at the end of the transmission line.
Terminating unit
Basic
2
- 3
*1
31.3kHz
125kHz
50m
200m
Up to 128
Up to 128
Connect a terminating unit at the end of a line for one master
Important
module.
Transmission distance
The setting applies to all the transmission speeds.
Specifications
7.8kHz
1km
Up to 128
50m (total length)
200m (total length)
1km (total length)
3km (total length)
2kHz
3km
*2
Up to 32

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