Installation Procedures 57LOF (RED)—Powers up in the “off” state and illuminates when a LOF (Loss ofFrame) condition is detected on the incoming DS3. The LOF LED is off when thesignal is in frame. It reflects the LOF state of the DS3 in real time (no integration ofthe state is needed).LOCD (RED)—Powers up in the “off” state and illuminates when a LOCD (Loss ofCell Delineation) condition is detected on the incoming DS3 under HEC (HeaderError Control) framing. The LOCD LED is off when delineations are obtained. Itreflects the LOCD state of the DS3 in real time (no integration of the state isneeded).Figure 27 DS3 UNI Module LEDsThe DS3/E3 UNI shares the same queue (Queue 1) as the Group 1 IMA UNI;therefore, if a DS3/E3 expansion card is installed in slot 9, the system deletesGroup 1 and all corresponding VCs on startup and generates an information onlyalarm. Furthermore, you cannot add Group 1 if a DS3/E3 expansion card isinstalled—either in the chassis or in the database. If you change the card type forslot 9 to DS3/E3 via the List Card menu, Group 1 and the corresponding VCs arenot deleted until the system is restarted.Step 5: Connect theManagement TerminalIn order to configure application connections and an IP address for SNMP support,you must connect a management terminal to the PathBuilder S330/S310. To dothis, follow these steps:1 Connect a VT 100 terminal to the RS-232 (console) port on the front of thePathBuilder S330/S310.2 Use the VT100 terminal to input an IP address for the PathBuilder S330/S310. See“Setting up Communication Parameters” in Chapter 3 for details.3 Establish communication between the PathBuilder S330/S310 and anymanagement terminal in one of these ways:n Direct RS-232 using the VT100 terminal or VT100 emulator, as described aboven Direct 10BaseT on the Management CPU card using an IP Telnet sessionLOCDLOFLOSALMINS
