IBM 4247 - Model 001 B/W Dot-matrix Printer, Руководство пользователя

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Twinaxial Cables
For twinaxial-attached printers, you can connect more than one printer to the same
computer port to reduce your cable costs. A maximum of seven printers can be
cabled together this way on a single port. However, the total cable length on any
port cannot be longer than 1524 m (5000 ft).
A twinaxial V-connector (IBM part 38F8254) is provided with your printer to allow
cable-through capability and line termination. This connector also allows a printer
to be disconnected from the computer port without disturbing the operation of other
devices connected to the same port.
The following diagram shows several possible ways of connecting your printer to
the computer.
P o r t
P o r t
P o r t
P r i n t e r P r i n t e r
P r i n t e r
P r i n t e r
P r i n t e r
P r i n t e r
M a x i m u m C a b l e L e n g t h
C o m p u t e r
1 5 2 4 m ( 5 0 0 0 f t )
If you install a signal cable outside the building, order a station protector kit to
protect your printer from lightning. You can order the kit from your IBM marketing
representative (allow a lead time of 120 days).
One kit (IBM part 7361807) provides two protectors. You need one protector at
each end of the twinaxial cable when the cable is installed outdoors (either above
or below ground level). Individual protectors are available for replacement (IBM
part 7362426).
If you are ordering cables from sources other than IBM, see Appendix B, “Cable
Specifications and Assembly of the Cables,” for specifications.
A-8
001, 002 User’s Guide