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Bosch Security Systems LSN 1500 A LSN Bus Module

LSN bus module for connecting an LSN loop with LSN improved or classic LSN elements in loop, stub or T-tap topologies.

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Recorded specifications

Model Code
LSN 1500 A
Order Number
4.998.137.278
Supported Topologies
Loop, Stub, T-tap
Maximum Line Length Metres
3000
Maximum Classic Lsn Elements
127
Maximum Lsn Improved Elements
254
Maximum Alarm Line Current Milliamps
1500
Maximum Classic Lsn Line Current Milliamps
300

Verified compatibility

Requires Option

Bosch Security Systems AVENAR panel 8000

Linked product → this product

High confidence

The AVENAR system manual and LSN module datasheet document LSN 1500 A as an AVENAR functional module.

Hardware scope
AVENAR panel 8000 fitted with LSN 1500 A in two panel-rail slots
Firmware scope
No firmware restriction recorded
Linked product type
Control Panel
Last verified
2026-08-09

Compatibility evidence

Supporting sources

LSN 1500 A LSN bus module datasheet

Bosch Security Systems • Checked 2026-08-09

verified
Open official source

AVENAR panel 8000 system manual

Bosch Security Systems • Checked 2026-08-09

verified
Open official source