Xerox 96 - Manual (Page 35)

PRINTER CONTROLLER
XEROX DOCUPRINT 96/4635/180 IPS SYSTEM OVERVIEW GUIDE 2-5
Host Channel Unit (HCU) — channel-attached systems only
The HCU handles all of the IPDS communications and handshaking
with PSF on the host when receiving data over a channel. (It is not
used when the IPS is printing data using TCP/IP.)
• The front panel of the HCU has a single-digit LED display,
which enables you to monitor power-up and offline status, and
alerts you to error conditions. (Refer to your IPS Messages
Guide for an explanation of the HCU codes displayed here.)
•
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. The standard switching power supply is capable of 10 amp
on the 5-volt output.
Note: You are responsible for obtaining, stringing, and maintaining
fully-populated bus and tag cables.
Figure 2-3. Host channel unit (HCU)
Placement of the processor
When you place your Printer Controller processor on a desktop,
make sure to allow at least 6 inches / 152 mm of unobstructed space
at the rear and both sides of the processor. Do not allow any piece of
equipment to blow warm air into the air-intake vents of the processor.
Caution: Do not place a monitor with a base larger than the
processor on top of the unit. Do not block any fan or vents on the
sides or rear of the processor.
Caution: If you plan to move the Printer Controller, make sure to
consult with your service representative.