Specifications

Installation
Interfacing BU70 Display Units and BU100/BU101 Panels, AutroSafe Interactive Fire-Alarm System,
116-P-BSL337/EE, Rev. D, 2007-01-25,
Autronica Fire and Security AS
Page 18
3.8.4 Maximum length of communication lines
The recommended maximum length of the communication lines are
as follows:
RS-232 < 10 metres
20mA current loop < 1200 metres
3.8.5 Cable connections between BU-panels in the BS-100 system
For information regarding cable connections between BU-panels
(BU-70 display units and BU-100/BU-101 panels), refer to separate
documentation (116-P-BU70/IE and 116-P-BU100/IE).