Mitsubishi A1S-J71QLP21 — The Mitsubishi A1S-J71QLP21 Network Module is a high-performance communication solution featuring impressive specifications

Part number	A1S-J71QLP21
Brand	Mitsubishi
Category	Communication Module
Description	The Mitsubishi A1S-J71QLP21 Network Module is a high-performance communication solution featuring impressive specifications
Manufacturer	Mitsubishi
Product Line	A Series
Part Number	A1S-J71QLP21
Weight	1.06 lbs (0.48 kg)
Model Type	Network Module
Max. link points per network	8192 points
Max. number of networks	239
Max. number of groups	9 (only in a PC network)
Number of connections when constructing a PC network	64 stations (control station 1, Normal station: 63)
Stations in 1 network when constructing a remote I/O network	65 stations (remote master station 1, I/O stations: 64)
I/O occupancy points	48 points
I/O slots	2 slots occupied
Communication speed	10 Mbps (20Mbps: Multiplex transmission)
Communication Method	Token ring mode
Transmission circuit format	Double loop
Transmission format	HDLC performance (frame format)
Transient transmission	N:N intercommunication
Consumption current (5VDC)	0.65A
External supply	20.4 to 31.2 VDC, 0.2A

The Mitsubishi A1S-J71QLP21 Network Module is a high-performance communication solution featuring impressive specifications. It supports up to 8192 link points per network, operating at a communication speed of 10 Mbps (20 Mbps in multiplex transmission). The module utilizes the Token ring and Frame synchronous modes for efficient data transmission with a double-loop circuit format. A maximum...

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.