Table of Contents
Advertisement
9.3
Connecting alarm inputs
Siemens Building Technologies
Fire Safety & Security Products
You can connect a total of 128 alarm inputs to a VIS3I-328, making a total of 256
alarms inputs for each expanded node.
You can connect Volt-free contacts from external alarm sources directly to the
alarm connector on the rear panel of the unit (see Fig. 7).
Pin connections for the alarm connector are shown in Tab. 15. A typical example of
alarm connections is:
PIN 1 to PIN 20
Alarm contact 1
PIN 2 to PIN 20
Alarm contact 2
PIN 3 to PIN 20
Alarm contact 3
PIN 1 to PIN 21
Alarm contact 17
PIN 2 to PIN 21
Alarm contact 18
PIN 3 to PIN 21
Alarm contact 19
PIN 1 to PIN 22
Alarm contact 33
PIN 2 to PIN 22
Alarm contact 34
PIN 3 to PIN 22
Alarm contact 35
PIN 1 to PIN 27
Alarm contact 113
PIN 2 to PIN 27
Alarm contact 114
PIN 3 to PIN 27
Alarm contact 115
Typical alarm connections direct to alarm connector
Tab. 15
For numerous alarms a separate optional alarm panel (Type VIS3-ALARMBOX) is
available for ease of installation. The alarm panel fits into a standard 19" rack
cabinet. A 37-way to 37-way cable (Type VIS3-ALMCAB) connects the alarm panel
to the unit alarm connector.
Fig. 11
Alarm panel
All individual alarm input connections are made via pairs of terminals (one above
the other) on the alarm panel, using a pair of volt-free wires for each alarm. You
configure each input using VisiPC as a normally open (N/O) or a normally closed
(N/C) contact. The 128 alarm inputs are provided in 8 separate banks.
Bank 1
Bank 2
1–16
Common
Common
Bank 5
Bank 6
65–80
Common
Common
Alarm panel – terminal identification
Tab. 16
Similar for alarm contacts 4 – 16
Similar for alarm contacts 20 – 32
Similar for alarm contacts 36 – 48
Similar for alarm contacts 116 – 128
Bank 3
17–32
33–48
Common
Bank 7
81–96
97–112
Common
Bank 4
49–64
Common
Bank 8
113–128
Common
10.2008
31
Advertisement
Table of Contents
