3Com 3C16734A, Руководство пользователя

Страница: 19 / 36

19
D
IMENSIONS AND
S
TANDARDS
Dimensions and Operating Conditions Standards
Functional: ISO 8802/3
IEEE 802.3, 802.3u
Safety: UL 1950, EN 60950
CSA 22.2 #950, IEC950
EMC: EN 55022 Class B
†
EN 50082-1
FCC Part 15 Class B
†
*
ICES-003 Class B
VCCI Class B
†
CNS 13438 Class A
Environmental: EN 60068 (IEC 68)
†
Category 5 screened cables must be used to ensure
compliance with the Class B requirements of this standard.
The use of unscreened cables (category 3 or category 5)
complies with the Class A requirements.
*Refer to “Electromagnetic Compatibility” on page 32 for
conditions of operation.†
Switch 4:
20VA, 55 BThU/hr
power requirement
Switch 8:
16.6 VA, 41.9 BThU/hr
Switch 16:
34.5 VA, 71.7 BThU/hr
0 to 90%
(non-condensing)
humidity
0 to 40°C (32 to 105°F)
operating
temperature
Switch 4: 0.96Kg (2.1 lb)
Switch 8: 0.9Kg (2.0 lb)
Switch 16: 1.0Kg (2.2 lb)
228mm (9.12in.)
54.6mm
(2.1in.)
185.4mm (7.3in.)
3C16734_Booklet.book Page 19 Tuesday, July 13, 1999 11:05 AM