Bosch Appliances COM1, COM4, 12.2.2Network Failover Solution D6600 Only

Conettix Communications Receiver/	Network Communications en 51
Gateway

12.2.2Network 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.

i	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.

1

COM1 COM4

3

7

6

		2
	COM1	COM4
		3
		4
A B C	5

Figure 12.5: D6686/D6682/D6680 Connection

Bosch Security Systems, Inc. Installation and Operation Guide 2012.11 08 4998122704