Installation ~ Networking Units

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Networking Units

Expansion bus connections

Using the Expansion Bus ports (RJ-45), you can connect up to eight PSR1212s or XAP 800/400s and 16 XAP TH2 units, where the total number of microphone inputs does not exceed 64. Make connections between units in daisy-chain fashion using the short RJ-45 jumper. If your units are further apart, use category five twisted-pair cable.

The maximum distance between interconnected PSR1212 or XAP 800/400 units is 80 feet (24 meters). Expansion bus cable length is calculated between PSR1212s and XAP 800s/400s.

PSR1212 unit 0

 

PSR1212 unit 1

 

Expansion Bus

Expansion Bus

In

Out

In

Out

PSR1212 unit 2

 

 

 

Expansion Bus

 

 

In

Out

 

 

To create an expansion bus network

1.Plug the expansion bus terminator in the Expansion Bus In connector of the first unit in the network.

2.Connect the RJ-45 jumper cable (or Cat 5 twisted pair cable) to the Expansion Bus Out connector of the first unit in the network and Expansion Bus In connector of the second unit. Continue connecting units in the same fashion.

3.Plug the expansion bus terminator in the Expansion Bus Out connector on the final unit to complete the network connections.

If the E-bus network is not connected properly, the front panel LEDs will flash on the units that are physically connected to the network. To correct the problem, check for broken connections and reconnect the expansion bus cables.

Figure 2.4. E-bus connection diagram

If connecting to other units, make sure the first unit in your E-bus network

is a PSR1212 or XAP 800/400 instead of a XAP TH2.

RS-232 system-wide con- trol can be provided by any

PSR1212 or XAP 800/ 400 unit in the network.

Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760

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ClearOne comm PSR1212 Expansion bus connections, Installation ~ Networking Units, To create an expansion bus network