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Installation ~ Networking Units
Technical Services Group ~ 1-800-283-5936 (USA) ~ 1-801-974-3760
Expansion bus connections
Using the Expansion Bus ports (RJ-45), you can connect up to eight 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 XAP 800/400 or PSR1212
units is 80 feet (24 meters). Expansion bus cable length is calculated between
XAP 800s/400s and PSR1212s. The cable connecting a XAP TH2 to the network
is included in the cable length between the XAP 800 or XAP 400. For example, if
the cable from the XAP 400 to the XAP TH2 is 50 feet and the cable from the
XAP TH2 to the XAP 800 is 50 feet, then the total length between the XAP 400
and XAP 800 is 100 feet which is beyond the maximum 80-foot limit.
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
Networking Units
ClearOne recommends that
the first unit in your E-bus
network be a XAP 400 or
XAP 800 rather than a XAP TH2.
✍
RS-232 system-wide con-
trol can be provided by any
unit in the network.
✍