Eicon-networks 1550 Manual do Utilizador Página 132

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Selecting an Interface Cable 132
Wire Gauge, Grounding, and Pairing
Use 28 AWG 7-strand wire with 0.020-0.028 insulation.
The chassis must be grounded both by a drain wire and by the braid; both must be
connected to the connector case and shell at each end of the cable. The braid must
be connected through its full circumference.
Wires identified under the heading Twisted Pairs must be paired. If you do not install
twisted pairs correctly, the cable will not work.
Type of Connectors
The VHSI port accepts a high density 36-pin male cable connector. The types of
connectors used on the interface-specific end of the cable are as follows:
V.35: Type M
V.24: DB25
V.36/RS-449: DB37
EIA-530: DB25
X.21:DB-15
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