Xerox DocuPrint 4850, Installation Planning Manual

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System overview
Installation Planning Guide 1-7
NOTE: The customer is responsible for obtaining, stringing, and
maintenance of the bus and tag cables. The bus and tag cables
must be fully populated cable sets.
Host Channel Unit (HCU)—channel-attached systems only
Your system may use a Host Channel Unit (HCU) for channel
connection to a host for IPDS printing.
The HCU handles all IPDS communications and handshaking
with PSF on the host when the system is receiving data over a
channel. It is not used when the system is printing data using
TCP/IP.
Figure 1-4. Host Channel Unit (HCU)
The front panel of the HCU provides a single-digit LED display
that enables you to monitor power-up and offline status, and
alerts you to error conditions.
The back panel of the HCU has a power switch and outlet, bus
and tag cable input and bypass connectors, and a dual serial
port.
NOTE: The customer is responsible for obtaining, stringing, and
maintenance of the bus and tag cables. The bus and tag cables
must be fully populated cable sets.