3Com SuperStack II 32x, Руководство по установке

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Connectors and Cables 2-7
STP Connector and Cable
The following figure shows the pinouts of the STP connector (DB-9).
The connector bodies connect the cable shield to chassis ground.
Table 2-2 lists cable types, multistation access units (MAUs), and
emissions classes compatible with the STP connector.
* Shielding of all cable types should be terminated 360 degrees at the cable plug.
† All UTP compliance testing was accomplished using cables built with Stewart Connector Co.
connector, part number 940 SP-36-08-08.
* Shielding of all cable types should be terminated 360 degrees at the cable plug.
Table 2-2 UTP Cable Types, MAUs, and Emissions Compliance
MAUs Emissions Compliance *
Cable Type Passive
Active
Retimed FCC and
VCCI Class A EN55022 and
VDE Class B
UTP
†
100 ohm:
Category 3 no yes yes no
Category 4 yes yes yes no
Category 5 yes yes yes no
Shielded
UTP
†
100 ohm:
Category 3 no yes yes yes
Category 4 yes yes yes yes
Category 5 yes yes yes yes
Table 2-3 STP Cable Types, MAUs, and Emissions Compliance
MAUs Emissions Compliance *
Cable Type Passive
Active
Retimed FCC and
VCCI Class A EN55022 and
VDE Class B
STP 150 ohm:
IBM Type 1 yes yes yes yes
IBM Type 6 yes yes yes yes
5
9 8 7 6
4 3 2 1
STP
1 RX
2 GND
3 +5 V
4 GND
5 TX
6 RX
7 GND
8 GND
9 TX
DB-9 female (shielded)
SS2TRHWBook Page 7 Monday, May 5, 1997 3:11 PM