Connecting External Cables
asafeinstall_dgb, AutroSafe Interactive Fire Detection System, Release 4,
116-P-ASAFE-INSTALL/DGB, Doc-1004796-2, 2021-08-23, Autronica Fire and Security AS
Page 46
10.7 RS-485 Connections to Terminal Block, List L1
Twisted pair, shielded cable is required.
Maximum 100 Ohm resistive loss.
Maximum total length 1200m.
Maximum cable capacitance 150 nF.
The protection shown in the schematic of port equivalent above is made
for 1kV High Energy Surge. In addition, the connection is protected
against wrong connections between Serial Reference and other signals
(X->Signal ref, Z->Signal ref, A->Signal ref, B->Signal ref) for voltage up
to 29V DC.
10.9 RS-232 Connections to Terminal Block, List L1
To Next Page
Loading...
Need help?
General
