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Product specification sheet
AL1921Document: AV-FEED-YMARK6

ifm · Industrial networking
Industrial IO-Link master ifm model AL1921
Industrial IO-Link master ifm part number AL1921; Operating voltage [V]: 20...30 DC; (US ; to SELV/PELV); Current consumption [mA]: 300...3900; (US); Max. current load total [A]: 3.6. Technical specifications, condition and supply feasibility are checked before ordering.
- Manufacturer part number
AL1921- Brand
- ifm
- Category
- Industrial networking
- Catalog status
- Available on request
Technical specifications
- Design
- housing for DIN rail mounting
- Application
- I/O modules for use in the control cabinet
- Operating voltage [V]
- 20...30 DC; (US ; to SELV/PELV)
- Current consumption [mA]
- 300...3900; (US)
- Protection class
- III
- Max. current load total [A]
- 3.6
- Total number of inputs and outputs
- 16; (configurable)
- Number of inputs and outputs
- Number of digital inputs: 8; Number of digital outputs: 8
- Number of digital inputs
- 8; (IO-Link Port Class A)
- Switching level high [V]
- 11...30
- Switching level low [V]
- 0...5
- Digital inputs protected against short circuits
- Yes
- Number of digital outputs
- 8; (IO-Link Port Class A)
- Max. current load per output [mA]
- 300
- Short-circuit proof
- Yes
- Communication interface
- Ethernet; IO-Link
- Transmission standard
- 10Base-T; 100Base-TX
- Transmission rate
- 10 MBit/s; 100 MBit/s
- Protocol
- MQTT JSON
- Factory settings
- IP address: 169.254.x.x; subnet mask: 255.255.0.0; gateway IP address: 0.0.0.0; MAC address: see type label
- Note on interfaces
- Secure protocol: HTTPS
- Transmission type
- COM1 (4,8 kBaud); COM2 (38,4 kBaud); COM3 (230,4 kBaud)
- IO-Link revision
- 1.1
- Number of ports class A
- 8
- Ambient temperature [°C]
- -25...65
- Storage temperature [°C]
- -25...85
- Max. relative air humidity [%]
- 90
- Protection rating
- IP 20
- EMC
- EN 61000-6-2; EN 61000-6-4
- MTTF [years]
- 44
- Weight [g]
- 318
- Housing
- rectangular
- Type of mounting
- mounting on DIN rail; (TH35 (EN 60715))
- Dimensions [mm]
- 125.7 x 50 x 105.3
- Materials
- housing: PA orange
- Items supplied
- cage clamps: 9
- Remarks
- For further information please see the operating instructions.
- Pack quantity
- 1 pcs.
Manufacturer datasheet · AL1921 / EN-GB / AL1921-00 / 2024-07-02 · en-GB · AL1921-00 · 2024-07-02Manufacturer source: ifm · Exact model verified · Covered models: AL1921 · Checked: 2026-10-07Official manufacturer source
This sheet provides a quick technical summary. For design, installation and final selection, review the latest official manufacturer documentation and verify the complete part number.