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I
NSTALLATION
To ensure proper installation, align the H4TU-C with the enclosure slot guides and
slide the unit in. The unit should snap into place, indicating that the unit is properly
seated.
P
-
OWER
When the H4TU-C powers up, the four-character display illuminates and displays
status messages.
If the H4TU-C is unable to communicate with the next span device, it displays various
alarm and status messages.
If the H4TU-C is able to communicate with the next span device, the following occurs:
•
The Status LED flashes red while each device in the system and lights a steady
green when the entire system is operating with no alarms. (The DS1 signal must
be present.)
•
The four-character display reports signal-to-noise ratio (SNR) margin readings
(should be ≥ 6 dB) and loop attenuation (should be ≤ 34 dB @196 kHz).
•
After the system powers up, alarm conditions that exist are reported on the
display. (The H4TU-C reports alarms if no DS1 signal is applied.)
P
ROVISIONING
Perform these basic provisioning tasks:
1
Connect a maintenance terminal to the craft port (see front-panel illustration
inside) and log on. (When logging on through the management unit, the default
password is public.) Press
Refer to the onscreen Help menu for navigational aids or use the
cycle through selections),
display a menu),
arrow keys (to navigate to a menu or item)
2
Access the Config menu, select Date and Time, then type the date and time.
3
Select the Inventory menu, then type in the unit ID numbers.
4
Change the settings of any system parameters, if necessary, by selecting Config,
then Standard Options or ADC Options. (Configuration options can also be set
from the front panel using the MODE and SEL pushbuttons. See
5
Once the H4TU-C is successfully installed and provisioned, access the Monitor,
Performance, or Event Log menus to clear the Performance, Alarm History, or
Event Log screens, or use Master Clear in the Config menu.
S
UP
EQUENCE
CTRL
+
(to activate the current setting, choice, or to
ENTER
F11
(to return to the parent menu), or directional
or
ESC
R
to refresh the logon screen, if necessary.
(to
SPACEBAR
Table 4
inside.)
Continued
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