System Expansion Using Cobranet Connection - Toa SR-D8- M Installation Manual

10.7. System expansion Using cobraNet connection

10.7.1. cobraNet connection outline
The system can be expanded by connecting the SR-D8-M's CobraNet terminals to the D-2008SP with the
D-2000CB CobraNet Interface Module.
Connect the SR-D8-M to the D-2008SP via a switching hub. Connect each of CobraNet Primary and Secondary
ports of the SR-D8-M to the same switching hub or different switching hubs connected in cascade.
Notes
• Make the CobraNet terminals completely independent from other LAN.
• The distance between each of the SR-D8-M and the switching hub is less than 100 m (110 yd).
• Be sure to make connections of both terminals PRIMARY and SECONDARY.
• Audio signals may be interrupted temporarily at the time of switching between PRIMARY and SECONDARY
ports.
• When connecting CobraNet terminal PRIMARY or SECONDARY to multiple switching hubs, be sure to
connect the hubs in cascade.
• Up to 7 switching hubs can be connected in cascade. The number of switching hubs between the SR-D8-M
and all CobraNet devices connected to the SR-D8-M should be 7 or less. (Refer to connection examples 1
and 2 on the next page.)
• When using multiple switching hubs, making star connection at the hub directly connected to the SR-D8-M as
shown in Connection example 2 is highly recommended to reduce the number of cascade-connected hubs.
20
SR-D8-M
Rear terminals
Bottom terminals
CobraNet terminal
(SECONDARY)
CobraNet terminal
(PRIMARY)