Cabletron Systems 9A000 manual C-20, Hardware Specifications, C.3.1.2 UTP Cable Specifications

Hardware Specifications

C.3.1.2 UTP Cable Specifications

The table below lists the recommended cable specifications for all Cabletron ATM adapters that use UTP cabling to ensure optimal adapter and switch performance.

Description	Value
AWG	24
Impedance (Ω)	100 ±15%
Attenuation (dB/1000 ft Max)	25 dB @ 16 mHz
	52 dB @ 62.5 mHz
	67 dB @ 100 mHz
Maximum Run	100 m *
Connector Style	RJ-45

* Within the 100 meter run, a maximum of two connections are permissible.

C.3.1.3 UTP Pinouts

All ATM Adapters that can be connected using copper cabling use a standard RJ-45 connector with the following pinouts:

Number	Transmit/Receive
1	Transmit (+)
2	Transmit (-)
3	not used
4	not used
5	not used
6	not used
7	Receive (+)
8	Receive (-)

C-20