Ioline Summit, Service Manual

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Technical Bulletin Operational Recommendations/Summit
Ioline makes the following recommendations regarding the installation and use of the
Summit:
1. We recommend that no more than 150 to 175 yards of paper are allowed to
accumulate on the take-up roll.
( Please note the specification for “Maximum Paper Take-
up” under Technical Specifications on the Summit Data Sheet
).
2. When installing the Summit we recommend the following guidelines with regard to
data cable construction and routing:
Pre-assembled cables with molded connector shells are preferred. If cables
must be handmade, recommended materials/procedures are as follows:
• Crimp type snap-in contacts are highly preferred over solder cup type
contacts.
• All crimps should be made with ratchet type tools.
•
Belden 9680 series low capacitance computer cable or equivalent cable
specifically designed for RS-232 applications should be used.
• All cable shields and ground connections MUST be properly connected.
• Connector backshells must have cable strain relief hardware and lock
assemblies installed.
• Solder cup contacts are not preferred, but if used, each solder connection
should be covered with heat shrink tubing after soldering.
4. Serial cables should be routed away from power cables and other sources of
electrical noise. The computer and its attached plotter should be powered from the
same ac circuit and preferably the same ac outlet to reduce the possibility of
ground potential differences.
5. Paper conditioning is important. New rolls of paper are typically very low in
moisture. Paper can stretch 1 to 2 percent in the mill direction as it accumulates
moisture from the surrounding air. A conditioning period of 48 hours is
recommended to ensure maximum accuracy and frame alignment. The roll should
be placed near the plotter (or at least in the same room). Orientation of the roll is
not important. Assuming that the paper is properly loaded, improper conditioning
is the primary cause of poor tracking and frame alignment when the user starts a