Verifying Stx Leds And Connecting The Optional Bits Clock; Connecting The Optional Bits Clock (Stx) - 3Com 3C63100-AC-C - PathBuilder S600 Bridge/router Reference Manual

56 C 2: I
HAPTER NSTALLATION
Verifying STX LEDs and
Connecting the Optional
BITS Clock
The STX module requires no external connections, but you must verify the front
panel indicator sequence illustrated in Figure 25.
Figure 25 STX Module LEDs
Power Inservice Fail
1.
2.
3.

Connecting the Optional BITS Clock (STX)

The PathBuilder S600 can receive or transmit a Bipolar Timing Source (BITS) clock
through the STX module. It offers the following options for the clock setting:
T1 CSU
n
DSX 0-133 feet
n
DSX 133-266 feet
n
DSX 266-399 feet
n
DSX 399-533 feet
n
DSX 533-655 feet
n
If desired, you can connect a BITS clock to the clock signal input or output port
located on the STX module using an RJ48 connector, as shown in Figure 26.
Test Active
Upon Power Up
Power On Tests Completed