3Com 100BASE-FX - Manual (Page 22)

22 10-Port 100BASE-FX and 20-Port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules Quick Start Guide
Module
Specifications
The following tables list specifications for the 10-port 100BASE-FX and
20-port 10/100BASE-TX Fast Ethernet Layer 2 Switching Modules:
Cabling Requirements
Environmental Requirements
Physical Specifications
Power Specifications
Module Required Cable Type Maximum Segment Length
100BASE-FX
(3CB9LF10MC) Multimode fiber
62.5/125 micron Half-duplex mode: 400 m (1312 ft
Full-duplex mode: 2 km (1.2 mi)
10/100BASE-TX
(3CB9LF20R) UTP Category 5 Up to 100 m (328 ft)
Operating temperature 0 to 50
°
C (32 to 122
°
F)
Operating humidity 10% to 90% relative humidity, noncondensing
Storage temperature –40 to 66
°
C (–40 to 151
°
F)
Storage humidity 5% to 95% relative humidity, noncondensing
Module Dimensions Weight
100BASE-FX
(3CB9LF10MC) 25.4 mm x 340.36 mm x 388.112 mm
(1 in. x 13.4 in. x 15.28 in.) 1.135 kg
(2.5 lb)
10/100BASE-TX
(3CB9LF20R) 25.4 mm x 340.36 mm x 388.112 mm
(1 in. x 13.4 in. x 15.28 in.) 1.1804 kg
(2.6 lb)
Module Voltage Wattage
100BASE-FX
(3CB9LF10MC) +5.2 V 25 W
+3.5 V 33 W
+12 V 2 W
Total Wattage = 60
10/100BASE-TX
(3CB9LF20R) +5.2 V 28 W
+3.5 V 41 W
+12 V 2 W
Total Wattage = 71