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FHX-1200
Twelve-Port Stackable
Fast Ethernet Hub
User’s Guide
Part #MAN092 Rev. 1.0 LS100
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Contents Section 1 - Introduction........................................................................ 1 Section 2 - Installation .......................................................................... 1 Section 3 - LED indicators ................................................................... 3 Section 4 - Troubleshooting .................................................................. 4 Section 5 - Specifications .....................................................................
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Section 1 - Introduction The MaxTech FHX-1200 is a 12-port hub compliant with the IEEE 802.3u 100Base-TX fast ethernet standard. The twelve RJ-45 ports connect workstations or other devices together on a 100Base-TX fast ethernet network using twisted- pair cable. An additional crossover port connects this hub to a second hub using a standard (straight-through) network cable for easy network expansion. The hub also provides a stackable port for cascading up to 6 hubs (72 nodes). A full set of LED
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Figure 2 Connecting a workstation 2.2 Connecting Hub to Hub The network can be expanded beyond twelve workstations by connecting two or more hubs together. There are two methods for expansion: daisy-chaining two hubs using a twisted pair cable, or stacking up to six hubs using the hub’s stacking connector. 2.2.1 Daisy-chaining hubs The hub’s twelfth port features an additional cross-over connection to facilitate daisy- chaining hubs using standard cable. Plug one end of a standard straight-throu
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Connect the supplied stacking cable to the OUT port of the first hub and connect the cable to the IN port of the second hub (refer to Figure 4). Do not connect an OUT port to an OUT port or an IN port to an IN port. Figure 4 Stacking hubs IN OUT IN OUT IN OUT Section 3 - LED indicators The front-panel LEDs (see Figure 5) show the status of the hub and the network connections. Figure 5 Hub LEDs COL LINK/ACTIVITY (12) UTILIZATION (5) RJ-45 CONNECTORS DAISY- PWR FX/ON FX ERROR (12) CHAIN LED Funct
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Section 4 - Troubleshooting Symptom: Partition indicator lights up. Causes: Hub has partitioned the 100BASE-TX (RJ-45) port due to excessive collisions. Solution: If port partitioning has occurred, the hub will automatically enable the port when the faulty condition disappears. Symptom: Link/Traffic indicator remains unlit. Causes: The workstation’s network adapter, cable or the hub port is defective. Solution: The most common cause is a defective network adapter or cable connection. Check the c
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Figure 6 Hub’s RJ-45 Pin Assignments Assignment Assignment Pin (MDI-X Port 1 - 8) (MDI Daisy-Chain Port) 1 8 1 Input Receive Data + Output Transmit Data + 2 Input Receive Data - Output Transmit Data - 3 Output Transmit Data + Input Receive Data + 6 Output Transmit Data - Input Receive Data - 4,5,7,8 Not Used Not Used Schematics for both straight and crossover twisted-pair cable are shown below. Straight-Through Crossover (Hub) (Adapter) (Hub) (Hub) 1 IRD+ 1 OTD+ 1 IRD+ 1 IRD+ 2 IRD- 2 OTD- 2 IR
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Appendix A - Optional 100Base-FX module The 100Base-FX module is an optional module which enables connectivity (as the thirteenth port) using multi-mode duplex 62.5/125 fiber-optic cable. Fiber- optic cable provides better immunity to electromagnetic interference and sup- ports longer cable lengths compared to copper wire. The 100Base-FX module may be used to connect the hub to either a 100Base-FX workstation or another 100Base-FX hub. The maximum cable length for a workstation connection is 13
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Appendix B - FCC Notice FCC Compliance Statement This product has been tested and found to comply with the limits for a Class B computing device pursuant to Part 15 of the FCC rules. Installed correctly, it prob- ably will not interfere with radio or TV reception. However, we do not guarantee the absence of interference. This product generates and uses energy of about the same frequency as radio and TV broadcasts. Installed incorrectly, it may interfere with reception of radio and TV broadcasts.
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product for service. Use the following procedure to return the product to MaxTech: 1. Return the product in its original package and packing (if possible), and put it in a sturdy corrugated box. 2. Be sure to include your name, address, day-time telephone number, RMA number, and a brief description of the problem (also enclose a check for out- of-warranty repair). Enclose your check or Postal Money Order for $7.50 to cover the cost of return shipping/handling. Please do not send cash or stamps.
