T4000 Sonet Clock Generators (Scgs) Leds; Figure 13: Scg With Rj-48 Ports; Table 5: Scg Leds - Juniper T4000 Hardware Manual

T4000 Core Router Hardware Guide
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T4000 SONET Clock Generators (SCGs) LEDs

22
T4000 SONET Clock Generators (SCGs) LEDs on page 22
Connecting the T4000 Router to an External Clocking Device
Maintaining the T4000 SCGs on page 333
Troubleshooting the T4000 SCGs on page 349
Three LEDs, located on the SCG faceplate, display the status of the SCG.
Table 5 on page 22 describes the functions of the SCG LEDs. Two
the left of each RJ-48 port, display the status of the external clock inputs links. The other
LEDs on the right of each port are not used.
NOTE: The external clock inputs on the SCG with DB-9 ports are not
functional.
Figure 13 on page 22 shows the LEDs on the SCG with RJ-48 ports.

Figure 13: SCG with RJ-48 ports

Online/Offline button
Fail Master
OK
Table 5 on page 22 describes the functions of the SCG LEDs. The
applicable to the SCG with DB-9 ports.

Table 5: SCG LEDs

Label Color
OK Green
FAIL Yellow
LINK
EXTERNAL CLOCK INPUTS
LINK
State Description
On steadily SCG is online and is functioning
normally.
Off SCG is not online or not
functioning normally.
On steadily SCG has failed.
Off SCG is offline or functioning
normally.
Copyright © 2018, Juniper Networks, Inc.
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