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 22.0 dB/100m @ 100 MHz
Maximum cable distance: 100 m
• Straight-through or crossover twisted-pair cable may be used.
• Shielded (STP) or unshielded (UTP) twisted-pair cable may be used.
• Pins 1&2 and 3&6 are the two active pairs in an Ethernet network .
• RJ-45 Pin-out: Pin 1 = TD+, Pin 2 = TD-, Pin 3 = RD+, Pin 6 = RD-
• Use only dedicated wire pairs for the active pins:
(e.g., blue/white & white/blue, orange/white & white/orange, etc.)
• Do not use flat or silver satin wire.
Troubleshooting
If the transceiver fails, determine the answer to the following questions:
1. Is the status LED flashing?
NO
• Verify that the AUI device is turned ON.
• Verify that the AUI cable from the transceiver to the AUI device port is
installed properly.
• Contact Tech Support: 724 746-5500.
YES
• Go to step 2.
2. Is the RX LED flashing (receiving data)?
NO
• Is the LED ON Solid?
• Check twisted pair cable for proper connection
• Contact Tech Support: 724 746-5500.
Yes
Go to step 3.
3. Is the TX LED ON?
NO
• Check twisted pair cable for proper connection.
• Is the LED flashing (transmitting data)?
• Restart the hardware to force re-initialization.
• Contact Tech Support: 724 746-5500.
Yes
• Contact Tech Support: 1724 746-5500.
LE180A
10
Black Box Network Services, 724-746-550, www.blackbox.com Black Box Network Services, 724-746-550, www.blackbox.com
11
LE180A
Contact Us
Black Box, Headquarters
1000 Park Drive
Lawrence, PA 15055-1018
By Telephone: 877-877-2269
By Fax: 724-746-0746
Technical Support
Technical support is available 24 hours a day.
U.S.A: 724 746-5500
Fax: 800-321-0746
Website: www.blackbox.com/Tech_Support/Index.aspx#
Declaration of Conformity
Name of Mfg: Black Box Network Services
Black Box, 1000 Park Drive Lawrence, PA 15055-1018 U.S.A.
Model: LE180A Transceiver
Part Number(s): LE180A
Regulation: EMC Directive 89/336/EEC
Purpose: To declare that the LE180A Transceiver to which this declaration refers is
in conformity with the following standards.
EN55022:1998 + A1:2000 + A1:2003 EN 55024:1998 + A1:2000 + A2:2003
I, the undersigned, hereby declare that the equipment specified above conforms to the above
Directive(s) and Standard(s).
May, 2007_____
Stephen Anderson, Vice-President of Engineering Date
NETWORK SERVICES
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