3Com 3C13886 Installation Guide - Page 130
Panel and Interface LEDs, Interface Cable, I. Interface cable of the ROUTER 4-PORT CE1/PRI FIC
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3Com Router Module Guide Chapter 4 4.4.3 Panel and Interface LEDs The following figure illustrates the ROUTER 4-PORT CE1/PRI FIC panel. Figure 4-20 ROUTER 4-PORT CE1/PRI FIC panel The following table describes the LEDs on the card panels. Table 4-11 LEDs on the FIC-E1 and FIC-E1-F panels LED Description LINK OFF means no link is present; ON means a link is present. ACTIVE OFF means no data is being transmitted or received on the interface; blinking means data is being transmitted and/or received. 4.4.4 Interface Cable I. Interface cable of the ROUTER 4-PORT CE1/PRI FIC Interface cables for the ROUTER 4-PORT CE1/PRI FIC are G.703-compliant cables, also known as E1 cables. The cables are divided into two categories: 75-ohm unbalanced coaxial and 120-ohm balanced twisted-pair. z 75-ohm unbalanced coaxial cable As shown in the following figure, at the router end of the cable is a DB-15 plug and at the network end are two BNC receptacles. Figure 4-21 E1 75-ohm unbalanced coaxial cable 4-21