A
SPECIFICATIONS
This appendix lists the specifications and connector pin 
assignments for the 3C905B-TX NIC. 
Specifications
Network Interface
10 Mbps Ethernet 
10BASE-T
Ethernet IEEE 802.3 industry 
standard for a 10 Mbps 
baseband CSMA/CD local area 
network
100 Mbps Ethernet 
100BASE-TX 
Ethernet IEEE 802.3u industry 
standard for a 100 Mbps 
baseband CSMA/CD local area 
network
Physical Dimensions
Height:  8.57 cm (3.75 in.)
Length: 12.07 cm (4.75 in.)
Environmental Operating Range
Operating temperature: 0˚ to 70 ˚C (32˚ to 158 ˚F)
Humidity: 10 to 90% noncondensing
Power Requirements
Operating voltage: +5 V ± 5% @ 650 mA max
Book  Page 1  Thursday, April 2, 1998  9:28 AM