Creating an XRN Distributed Fabric 25How To InterconnectUnitsYou can interconnect your Switches to create an XRN Distributed Fabricusing one of the following methods:■ XRN Interconnect Kit (3C17715) — consists of two XRN InterconnectModules and a 1 meter (3.28 feet) Interconnect cable. Should youwish to connect two Switch units together that are located in separateracks you can obtain a 5 meter (16.4 feet) Interconnect cable(3C17722). Contact your network supplier for further information.■ SuperStack 3 Switch 4900 Family GBIC Module (3C17714) operatingin XRN mode. Using the GBIC Module in this way means you can havean Fabric Interconnect extended up to 70 Km (43.5 miles) betweenthe units, if necessary (dependant upon GBIC transceiver type).For a detailed description of how to create an XRN Distributed Fabricusing either of these methods, please refer to the user documentationthat accompanies the Kit or the GBIC Module. The documentation canalso be located on the 3Com Web site.Figure 10 Two Switch 4900 units interconnected using the XRN InterconnectKitRules ForInterconnecting UnitsThis information is also provided in the user documentation thataccompanies the XRN Interconnect Kits or GBIC module.■ The maximum number of Switch units that can be interconnected istwo.■ Both Switches must have an unused expansion slot to allow anInterconnect Module or a GBIC Module to be fitted.■ The XRN Interconnect Module and the GBIC Module are NOThot-swappable or hot-insertable. Ensure that the Switch is poweredoff before inserting or removing a Module.S/N: XXXX/7XXXXXXXXXS/N: XXXX/7XXXXXXXXXXRN Interconnect Module (3C17716)XRN Interconnect Module (3C17716)Console(max) 19200,8,1,NConsole(max) 19200,8,1,NUnit 1Unit 1Unit 2Unit 2 ActivityActivityStatusStatus3C17700MAC Addr: XXXXXXXXXXXXSwitch 4900Serial No XXX/XXXXXXXXXXSUPPLY DATAV-90 - 240 Hz50/60AINPUTV27 AMax12REFER TO INSTRUCTIONMANUAL FOR CORRECTI4.5S/N: XXXX/7XXXXXXXXXS/N: XXXX/7XXXXXXXXXXRN Interconnect Module (3C17716)XRN Interconnect Module (3C17716)Console(max) 19200,8,1,NConsole(max) 19200,8,1,NUnit 1Unit 1Unit 2Unit 2 ActivityActivityStatusStatus3C17700MAC Addr: XXXXXXXXXXXXSwitch 4900Serial No XXX/XXXXXXXXXXSUPPLY DATAV-90 - 240 Hz50/60AINPUTV27 AMax12REFER TO INSTRUCTIONMANUAL FOR CORRECTI4.5