Network Failover Solution (D6600 Only)
An installed Conettix System should have at least two D6600s and two D6686/D6682/D6680
modules to allow for a redundant backup to the first system in the event of a system Number
1 failure. To allow for a redundant backup of the D6686/D6682/D6680, program the IP
address of D6686/D6682/D6680 Number 1 into D6686/D6682/D6680Number 2. This allows
for a change-over from D6686/D6682/D6680 Number 1 to D6686/D6682/D6680 Number 2.
This might seem like a simple solution, but it is much more complex than it appears. In a
network environment, the MAC address plays a crucial role in delivery of the data to the
D6686/D6682/D6680. By simply switching from D6686/D6682/D6680 Number 1 to D6686/
D6682/D6680 Number 2, no data would be delivered to D6680/D6682 Number 2 immediately
after switching. This section does not explain why this happens, but how to overcome this.
Notice!
Software version 5.5C or greater must be installed in the D6680 for the Alternate MAC Ad-
dress function.
Each D6686/D6682/D6680 is programmed with the same IP address, but only one is
connected to the network at the same time by using an AB switch. This switch could be a
larger switch that also changes the phone lines from one D6686/D6682/D6680 to the other, or
any other type of switch that the location might use as long as it switches the network
connection from one D6686/D6682/D6680 to the other.
COM4COM1
A B C
COM4COM1
1
2
3
4
5
6
7
3
Figure 12.5: D6686/D6682/D6680 Connection
12.2.2
Conettix Communications Receiver/
Gateway
Network Communications | en 51
Bosch Security Systems, Inc. Installation and Operation Guide 2012.11 | 08 | 4998122704
