TRACER 6000 Series Integrated System Manual Section 1 System Description612806420L1-1F Copyright © 2005 ADTRAN, Inc. 13• Point-to-point transmission, up to 30 miles• 1U high unit for easy rack mountingAvailable Interface Modules• Quad T1 Module (P/N 1280040L1)• Quad E1 Module with 120Ω Interface (P/N 1280044L1)• Quad E1 Module with 75Ω Interface (P/N 1280044L2)• Quad Ethernet Switch Module (P/N 1280050L1)E1 Network Module with 120Ω Interface• Four E1 circuits provided through four RJ-45 connectors• Complies with CCITT G.703, G.704, and G.823 standards• E1 circuit alarm reporting capability• Testing support through local and remote line and link loopbacksE1 Network Module with 75Ω Interface• Four E1 circuits provided through a single DB-25, 75Ω connector• Complies with CCITT G.703, G.704, and G.823 standards (with the BNC breakout panel)• E1 circuit alarm reporting capability• Testing support through local and remote line and link loopbacks• 75Ω E1 breakout panel (P/N 1280060L1) provides BNC interfaces for E1 connectionsT1 Network Module• Four T1 circuits provided through four RJ-45 connectors• Complies with ANSI T1.403 and AT&T 54016 and 62411• T1 circuit alarm reporting capability• Testing support through local and remote line and link loopbacksQuad Ethernet Switch Module• Four 10/100BaseT/TX interfaces provided through four RJ-45 connectors• Auto MDI/MDIX crossover on all interfaces• Back-pressure flow control on all half-duplex interfaces• Pause-frame flow control on all full-duplex interfaces