Crestron
CNXHUB
Cresnet Hub/Repeater
Operations Guide - DOC. 8146
Cresnet Hub/Repeater: CNXHUB
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Cresnet Hub/Repeater: CNXHUB
Description
Functional Description
The Cresnet Hub/Repeater, CNXHUB, is a Cresnet compatible hub that can serve as
a repeater, splitter, and wiring block. There are six independent RS-485 ports. Each
port (or segment) has a dedicated driver/receiver. There are no master or slave ports
and each port is interchangeable with the others.
The power (pin labeled 24) and ground (G) signals are common to all six connectors.
Therefore, they can be used for power distribution. The CNXHUB draws power
from any of the six connectors.
DO NOT
connect multiple power supplies to the
CNXHUB.
Segments that are not in use or have devices that are not polled by a SIMPL
program, are logically ‘disconnected’ from the other segments in operation. The
LED for these segments going out indicates this condition.
Physical Description
The CNXHUB is housed in a black enclosure with silk-screened labels on the front
and rear panels. On the front of the unit there are seven LEDs for indicating the
unit’s current status. All connections are made on the back of the unit. Refer to the
physical views shown on the next page. There are four rubber feet on the base of the
unit for stability and to prevent slippage when the unit is stored on a surface or
stacked. Up to two units can be rack mounted with an optional 19.00 inch (48.26 cm)
rack mount kit (sold separately).
CNXHUB Ports
All six ports (labeled A–F) are on the rear panel of the CNXHUB. Attach wiring per
latest revision of either the Network Interconnection Drawing (Doc. 5411) or the
Mini Network Interconnection Drawing (Doc. 5819). The Crestron or CAT 5 cables
can be secured to the six supplied mini-phoenix connectors which can be plugged
into the CNXHUB ports.