User's Manual

USER
MANUAL
MPD-1611291-A
EXACT-V2 High End Rack Modulator / Exciter
3/10/2017
MPD-1611291-A
Page 84/94
6.3 Licence key management
New licences for either TSOIP or SNMP may be purchased separately and added to
the exciter. For this purpose:
o Access the web GUI and go to the “Management / Options” tab
o Select the desired option to unlock by clicking on the associated “Unlock” button
o Enter the key code that is provided by Hitachi-Comark following the licence order
The product then automatically reboots and the new licence is taken into account.
6.4 Troubleshooting of the exciter
6.4.1 LED Check
If the exciter does not work properly, a few checks could be done before calling the
technical support team at Hitachi-Comark.
A set of 4 LEDs indicates the modulator status following the Hitachi-Comark standard,
Power, Input, Output and Alarm LED indicators.
Name
Description
Power
Green off: power off
Green fix: power on
Input
Green off: Primary input is not detected (in manual mode) or
primary and secondary input is not detected (in auto mode)
Green flashing: Primary input is OK
(1)
but secondary input is OK
(in auto mode)
Green fixed: Primary input is ok
(1)(4)
Output
Green off: no RF output (module failure or mute condition)
Green fixed: the RF output is available (normal mode)
Green flashing: Test signal
(2)
is generated or RF Maintain mode
Alarm
Off: No critical error detected
Red fixed : Module failure
Red flashing : Primary input failure
(3)
or primary clock
reference
(5)
loss (10 MHz or PPS in case of ext 10MHz + ext
1PPS primary selection)
Table 10: LED Analysis
(1) If primary input is detected but any condition for "Mute on TS error" is met, the
input LED is flashing.
(2) PRBS, Sine, or any special test.
(3) Except in case of PRBS or Sine test mode.
(4) In automatic mode, if the primary input is detected, the input LED is fixed at
whatever the secondary input status is.