Connecting To The T1/E1 Uni Interface - 3Com SuperStack II PathBuilder S330 Reference Manual

Connecting to the T1/E1 UNI Interface

As shown above in Figure 23, 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 (eight if you have installed the optional four-port
IMA expansion module) 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.
For connector pinouts, see "T1/E1 UNI with IMA Interface Connector Pinouts" in
Appendix A.
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 24.)
The PathBuilder S330 switch has four of each of the following LEDs (one for each
T1/E1 port). The PathBuilder S310 switch 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 24 PathBuilder S330 T1/E1 UNI LEDs
NOTE: The PathBuilder S310
has only one set of functioning LEDs
1 2 3 4
Alarm
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Installation Procedures 29