Sub-line coupler 2-wire bus system REG. Sub-line coupler for intercom system according to DIN EN 50486 in 2-wire technology. Up to 8 sub-line couplers in a single line each with a maximum of 32 indoor stations can be set up to form a system with 256 indoor stations. When using 8 couplers, 3 indoor stations can be operated in parallel, making a system with 24 parallel indoor stations possible. Notes: The power supply is via a special line supply (not included in delivery).
