C.
48VDC Power Connection:
Power connection for the Pliant 48VDC Power Supply (PPS-48V-02 included),
which allows the Hub to receive external (local) power.
To ensure best performance, especially with larger CrewCom configurations and longer cable lengths, Pliant
recommends utilizing the supplied 48VDC power supply to locally power each Hub. However, powering a Hub
and the devices connected to it via PoC may be advantageous in some smaller configurations.
D.
ERROR LED:
Device error status indicator. This LED function is currently not available. See
for more LED information.
E.
External (Local) Power (EXT PWR) LED:
Indicates that external (local) power is being provided via a Pliant
48VDC Power Supply. See
for more LED information.
F.
Network Power (NET PWR) LED:
Indicates the Hub is receiving PoC via Port 1. The LED indicates the presence
and strength of this PoC. See
for more LED information.
The Hub must be connected to Port 1 via a Cat 5e (or greater) copper cable in order for it to receive PoC. If PoC
is not used, the Hub must be powered externally by a Pliant 48VDC Power Supply.
G.
CREWNET Ports 1–8 and Status LEDs:
The CrewNet ports allow the Hub to connect to the CrewCom Control
Unit, Radio Transceivers, and other Hubs, supporting a proprietary network design where all devices are part
of a CrewCom Configuration File that shares data, timing synchronization, and audio. Ports 1 through 7 are
copper (RJ-45, Cat 5e or greater); Port 8 can be either the last copper port or the separate duplex LC Single
Mode Fiber port, and only one may be used at a time. See
for more LED information.
Copper Hub Power Tips:
Port 1 cannot power devices. It can only accept power, and this
power is indicated with the NET PWR LED. Since Port 1 cannot source power to downstream
devices, even if the Hub is locally powered, any device connected to this port will require its
own local power supply. To ensure best performance, especially with larger CrewCom
configurations and longer cable lengths, Pliant recommends utilizing the supplied 48VDC
power supply to locally power each Hub. However, powering a Hub and the devices connected
to it via PoC may be advantageous in some smaller configurations.
Each port’s status LEDs indicate the status of the CrewNet connection. See
for more
LED information.
Product Overview - 20
Summary of Contents for CrewCom CHB-8C
Page 1: ...Hub OPERATING MANUAL...
Page 2: ...ii...
