Setup options and limits
This section describes the setup options and limits for the CCS 1000 D Digital Discussion
System. The following example system setups are described:
–
A small/medium sized system that has a Control Unit, and a maximum of 80 Discussion
Devices. See Small/medium sized system (max. 80 Discussion Devices), page 17.
–
A large system that has a Control Unit, one or more Extension Units, and a maximum of
245 Discussion Devices. See Large system (max. 245 Discussion Devices), page 18.
–
A system that has extension cables longer than 20 m (66.0 ft) connected to a trunk or
tap-off. See Extension cables, page 20.
Note: Due to power loss, extension cables longer than 20 m (66.0 ft) have a direct effect
on the number of Discussion Devices that can be connected to a trunk/tap-off.
Small/medium sized system (max. 80 Discussion Devices)
A small/medium sized system has one Control Unit and a maximum of 80 Discussion Devices.
The following limits are applicable in this situation:
–
Limit 1: A maximum of 40 Discussion Devices can be daisy‑chained to each trunk of the
Control Unit.
–
Limit 2: If an extension cable longer than 20 m (66.0 ft) is added to a trunk, the number
of Discussion Devices that can be added to that trunk is reduced. Refer to the table in
Extension cables, page 20.
–
Limit 3: The maximum cable length for a trunk is 100 m (328.0 ft). This includes all
extension cables (including the first 20 m (66.0 ft) of extension cable) + the Discussion
Device cables of 2 m (6.6 ft) per device.
The following figure shows the maximum of 40 Discussion Devices connected to each trunk of
the Control Unit: 40 + 40 = 80 Discussion Devices.
1
40x
40x
2
2
Figure 4.4: Example setup for a small/medium sized system (max. 80 discussion devices)
1.
Control Unit
2.
Extension cable 20 m (66.0 ft) long connected to each trunk of the Control Unit
4.5
4.5.1
Digital Discussion System
Planning | en
17
Bosch Security Systems B.V.
Operation manual
2016.05 | V2.0 |
Summary of Contents for CCS 1000 D
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