System connections
Installation Planning Guide 7-3
Channel attachments
The NPS/IPS printing system conforms to IBM standards and
requirements for any channel-attached
printer. When you channel-attach your printer, keep the following
in mind:
• Channel length is usually determined by the length of the
cables, the number of devices on the channel, and the
number of connections in the cable itself (for example,
connecting two cables to each other).
• Subtract 15 feet from the total allowable cable length for any
device attached to the channel or for any connection of two
cables.
• IBM channel cable lengths are as follows:
– Gray: 200 feet / 61 m (with one device, 185 feet / 56 m)
– Blue: 400 feet / 122 m (with one device, 385 feet / 117 m)
For further information regarding IBM channel connections, refer
to the following IBM manuals:
•

IBM System 360 and System 370 Input-output Interface

Channel to Control Unit OEM Information

(#GA22-6974-
3825)
•

Page Printer Product Description

(#G544-3482)
•

3825 Introduction and Planning Guide

(#G544-3480).