Eicon Networks ISDN NT1 Guía de instalación descargar pdf (Pagina 22)

VHSI port specifications

page 22

Cable construction information

If you plan to construct your own VHSI cables, be sure to observe

the guidelines given below.

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 as “twisted pairs” must be paired. If you do not

wire 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 listed in Table 2.

Table 2. Connector types

Interface Connector

V.35 Type M

V.24 DB25

V.24 (C91 PCIe) micro-D

V.36/RS-449 DB37

EIA-530 DB25

X.21 DB15

64-0308-09.fm Page 22 Monday, March 15, 2010 3:32 PM

1 2 ... 17 18 19 20 21 22 23 24 25 26 27 ... 51 52

Sin comentarios

Eicon Networks ISDN NT1 Guía de instalación Pagina 22