3Com 3C63311 Reference Guide - Page 54
Connecting to the T1/E1 UNI Interface, ALARM PORT #N red, ONLINE PORT #N green
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42 CHAPTER 2: INSTALLATION Connecting to the T1/E1 UNI Interface As shown above in Figure 18, the PathBuilder S330 T1/E1 UNI with IMA interface provides four T1/E1 ports. You can connect a single T1/E1 line to this interface, or connect up to four T1/E1 lines and combine them to form a logical, inverse-multiplexed high-speed link. See "Configuring UNI and IMA Groups" in Chapter 4 for details about setting up IMA groups. If you are using a G703 coax physical connection to connect the E1 line to the interface, you must use the E1 Balun Adapter (part number 3C63904). T1/E1 UNI Interface LEDs In addition to the common LEDs described earlier in this chapter, the following LEDs indicate the status of each T1/E1 port. (See Figure 19.) The PathBuilder S330 has four of each of the following LEDs (one for each T1/E1 port). The PathBuilder S310 has one of each of the following LEDs (for its one T1/E1 port). ALARM PORT #N (red)-Powers up in the "off" state and illuminates when an alarm condition is detected on the corresponding T1/E1 line. ONLINE PORT #N (green)-Powers up in the "off" state and illuminates when you set the administrative status of the T1/E1 port to In Service. See "Configuring the T1/E1 Interface" in Chapter 4, for details about how to set the administrative status of the T1/E1 ports and/or IMA groups. Figure 19 PathBuilder S330 T1/E1 UNI LEDs NOTE: The PathBuilder S310 has only one set of functioning LEDs Alarm Online 1234 Connecting to the Serial Port To connect to the serial port, connect a DTE or DCE cable to the MOLEX 60-pin connector on the front of the unit. The cable options for the serial port are: n DCE V.35-The connector type on the V.35 cable converter is 35-pin Winchester; female. n DTE/DCE RS-449-The connector type at the end of the RS-449 cable is DB-37 subminiature; female for DCE, male for DTE. n DTE/DCE EIA530-The connector type at the end of the EIA530 cable is DB-25 subminiature; female for DCE, male for DTE. n DTE/DCE X.21-The connector type at the end of the X.21 cable is DB-15 subminiature; female for DCE, male for DTE.