Mitsubishi A1SJ71T21B — Data Link Module

Part number	A1SJ71T21B
Brand	Mitsubishi
Description	Data Link Module
Manufacturer	Mitsubishi
Product Type	Data Link Module
Product Line	A Series
Part Number	A1SJ71T21B
Weight	0.31 lbs (0.14 kg)
Current Consumption	0.66 A
Dielectric Withstand Voltage	500 Volts AC for 1 minute
Communication Speed	125 kbps, 250 kbps, 500 kbps, and 1 Mbps
Communication Distance	Up to 1200 meters
Communication Method	Half duplex bit serial method
Insulation Resistance	5 Megaohms
Number of Occupied I/O Points	32 Points
Transmission Format Compatibility	HDLC
Min. Operating Temperature	0 °C
Max. Operating Temperature	55 °C
Operating Ambient Humidity	10 - 90% (Non-condensing)

The A1SJ71T21B model from Mitsubishi is a key data link module in the A Series. This device efficiently manages communication across various speeds from 125 kbps to 1 Mbps, allowing for data transmission over distances of up to 1200 meters.

Compatibility data for this part number is being verified. Send an RFQ with your equipment model and serial — our suppliers confirm fitment before quoting.

Data compiled from 1 verified source. Last reviewed 2026-08-16.