3Com 3C421600A Management Manual page 284

282 A B: T
PPENDIX ECHNICAL SPECIFICATIONS
WAN Interface - Cabling Specifications
Wire Type: 10 Mbps: CAT 3 or CAT 5 twisted pairs 100 Mbps: CAT 5
twisted pairs
Max. Cable Distance: 100 meters (328 ft.) suggested maximum.
Longer cabling may be used at the expense of reduced receiver
squelch levels.
Cable Loss: Must be £ 11.5 dB/100 m for frequency range of 5-10
MHz
Characteristic Impedance: 85-111 Ohms for frequency range of 5-10
MHz
Propagation Delay: 5.7 nanseconds/meter
Cabling: RJ-45 plug to RJ-45 plug straight through for multiport
repeater applications (transmit to receiver crossover cable for
two-node network).
FireWire
Electrical specification: N/A
Connector: IEEE P1394
Configuration: N/A
Transmission method: High Speed Serial Bus (HSSB)
Transmission rate: N/A
Environmental
Shipping and Storage Temperature: 0× C - 40× C, 32×F - 104×F
Shipping and Storage Relative Humidity: 0 - 95%, non-condensing
Operating Temperature: 0× C - 40× C, 32×F - 104×F
Operating Relative Humidity: 0 - 95%, non-condensing