Redundant Cabling For Dcnm-Aps2/Dcnm-Ps2 Units - Bosch DICENTIS Hardware Installation Manual

DICENTIS
4.4.2

Redundant cabling for DCNM-APS2/DCNM-PS2 units

This section describes how to create redundant cabling for DCNM-APS2 / DCNM-PS2 type
units. The maximum number of Ethernet devices in the largest possible loop (including the
root switch) is 22. In a system with no Ethernet switch(es), the APS is the root switch.
The total number of devices allowed in a loop depends on:
–
–
The figure shows how to calculate the number of devices in the loop. The red line shows the
largest loop. The # sign shows the way the devices are counted.
In the example below up to 19 discussion devices can be connected.
Figure 4.7: DICENTIS discussion devices connected with redundant cabling between DCNM-PS2 / DCNM-
APS2 type units
1: DICENTIS system/client PC.
2: Network switch (with optional redundant power supply)
3: DCNM-APS2
4: DCNM-PS2
5: DICENTIS cabling (redundant loop)
Bosch Security Systems B.V.
The type of device connected in the loop (for example, DCNM-MMD2 devices consume
more power than DCNM-DE devices).
The length of the loop (cable also consumes power).
1
#2 3
#3
Hardware Installation Manual
System installation design and planning | en
2
#1
#22
4
5
5
5
#21
4 4
5
5
5
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