Instruction/ maintenance manual of the product LE180A Black Box
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LE180A 10Base-T T ranscei ver • Stand-Alone model • Attached Unit Interface (AUI) to Ethernet RJ-45 connectors • No external power requirement NETWORK SERVICES General Description . . . . . . .2 Connectors & Cables . . . . . . .3 Installation .
LE180A 2 Black Box Network Services, 724-746-550, www.blackbox.com Gener al Description The LE180A IEEE802.3 compliant Ethernet transceiver uses 10Mbps Ethernet CSMA/CD protocol to provide a connection interface to 10Base-T Ethernet unshielded twisted-pair (UTP) cables.
LE180A 4 Black Box Network Services, 724-746-550, www.blackbox.com C onnectors & C ables -- C ontinued AUI connector -- continued Pin Name Pairs Use 3 DO + Transmit Data Out + 10 DO - Pair Data Ou.
6 Black Box Network Services, 724-746-550, www.blackbox.com Installation Switches The LE180A has a 3-position DIP switch. See Figure 6. Two of the switches provide options for enabling and disabling the SQE test and LINK test functions. Both test functions are Ethernet and 10Base-T standards.
LE180A 8 Black Box Network Services, 724-746-550, www.blackbox.com Oper ations LEDs Figure 9 shows the LE180A LEDs: The LE180A LEDs display the operational status of the transceiver.
Cable Specifications The physical characteristics of the media cable must meet or exceed IEEE 802.3 specifications. Copper cables Category 3: (minimum requirement) Gauge 24 to 22 AWG Attenuation 11.5 dB/100m @ 5-10 MHz Maximum cable distance: 100 m Category 5: (recommended) Gauge 24 to 22 AWG Attenuation 22.
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