3com 140m Guía Del Usuario
A
D
IMENSIONS
, S
TANDARDS
AND
C
ABLING
Dimensions and Operating Environment
Figure A-1 Dimensions and Operating Environment for the
Switch
Switch
BABT Approval (for U.K. Users Only)
The OfficeConnect
Switch
140M is covered by Oftel
General Approval, NS/G/12345/J/100003, for indirect
connection to a public telecommunications system.
This can be achieved using the console port and an
approved modem.
connection to a public telecommunications system.
This can be achieved using the console port and an
approved modem.
Standards
Functional:
ISO 8802/3
IEEE 802.3
IEEE 802.3
Safety:
UL 1950, EN 60950
CSA 22.2 #950
CSA 22.2 #950
EMC:
EN 55022 Class B
†
EN 50082-1
FCC Part 15 Class B
FCC Part 15 Class B
†
*
CSA C108.8-M1983 Class B
†
VCCI Class 2
†
AS/NZS 3548 Class B
†
Environmental:
EN 60068 (IEC 68)
†
Category 5 screened cables must be used to ensure compliance
with the Class B limits of this standard. The use of unscreened
cables (Category 3 or 5 for 10BASE-T ports or Category 5 for
100BASE-TX ports) complies with the Class A requirements.
cables (Category 3 or 5 for 10BASE-T ports or Category 5 for
100BASE-TX ports) complies with the Class A requirements.
user guide for conditions of operation.