3Com S330 manual Connecting to the T1/E1 UNI Interface, Connecting to the Serial Port

42CHAPTER 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

1 2 3 4

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:

■DCE V.35—The connector type on the V.35 cable converter is 35-pin Winchester; female.

■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.

■DTE/DCE EIA530—The connector type at the end of the EIA530 cable is DB-25 subminiature; female for DCE, male for DTE.

■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.