Spectracom 9289, Instruction Manual

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Spectracom Corporation Model 9289
NetClock/NTP Network Time Provider Instruction Manual 4-1
4 Operation
Operation of the 9200 series NetClock is relatively intuitive and requires little operator
intervention during normal network operations.
4.1 Front Panel
The front panel of the NetClock consists of one Ethernet connector which has two small
indicator lamps, two main status LED’s and two LCD displays (the LCD displays are present
only if Option 02 is purchased). The two status lights are “Sync” and “Power”. The LCD’s are
configurable to display various time, data, version information formats. Refer to Figure 4-1 for a
picture of the front panel.
The Spectracom NetClock has two main status LEDs present on the front panel. These status
lights provide the user with the indication that power is applied to the unit (Power LED) and that
the NetClock is currently synchronized or not synchronized (Sync LED). The power light will be
blank if power is not applied or green if power is applied. The Sync light has many states to
indicate the current status of the unit.
The Ethernet connector provides an interface to the network for NTP synchronization and to
obtain access to the Web Browser. The Ethernet connector has two small indicator lights just
above the connector. These lights are known as Good Link (Green LED) and Activity (Orange
LED). The Good Link light indicates a connection to the network is present. The activity light will
blink when network traffic is detected.
The states of the Power, Sync and Ethernet LED’s are listed in Section 4.1.1.
Figure 4-1: Front Panel Display (Standard)
4.1.1 Status Indicator
At power up, a quick LED test is run. The unit displays a Red – Green – Orange sequence to
ensure the operation of the LEDs.
The table on the following page describes the operation of the LEDs. In this table, the terms
“
Blink” and “Flash” are used.
Blink is defined as ½ second on, ½ second off
Flash is defined as
1
/
20
second on,
19
/
20
second off