Technical data

36
Siemens Building Technologies
Fire Safety & Security Products 08.2006
9.4.2 XTU connections - RS485 (D-type) telemetry
Fig. 14 RS485 (D-type) telemetry
1
CAUTION
This device must be earthed.
A readily accessible disconnect device shall be incorporated in
the building installation wiring.
As part of the building installation protect this device via a 3 A
fuse or 3 A circuit breaker.
2 AC mains input
3 AC mains to PSU
4 Alarm contacts
5 Relay output to user equipment (e.g. alarm system) 1.5 A, 24 V DC max.
6 Interface connector (do not use)
7 Tamper switch
8 From PSU
9 Programming head (do not use)
10 Telemetry indicator
11 RS485 telemetry termination link
12 Coax cable (video to controller)
13 Twisted pair telemetry cable
14 Dome unit
15 Dome connection cable
16 Camera input
17 Telemetry controller
18 RS 485 telemetry output