CMUip-2212 Cabinet Monitor Unit
Operations Manual
Eberle Design Inc.
Page 18
Section 4
FRONT PANEL DESCRIPTION
4.1 INDICATORS
4.1.1 POWER INDICATOR
A green POWER indicator will illuminate to indicate MAINS voltage is proper. It will flash at
a 2 Hz rate when the MAINS input of the CMU is less than the Dropout voltage (see
Section 5.1). It will remain Off when the MAINS voltage is less than approximately 60% of
nominal MAINS voltage.
4.1.2 48VDC FAIL INDICATOR
A red 48VDC FAIL indicator will illuminate when the CMUip-2212 is in FSA as a result of a
48VDC cabinet power supply fault.
The 48VDC FAIL indicator will pulse at a 2 Hz rate when the 48VDC monitor function is
disabled. The 48VDC, 24VDC FAIL and 12VDC FAIL will pulse when either the
POWERDOWN or NRESET input is False (low). See section 2.12.2.
4.1.3 24VDC FAIL INDICATOR
A red 24VDC FAIL indicator will illuminate when the CMUip-2212 is in FSA as a result of a
24VDC cabinet power supply fault.
The 24VDC FAIL indicator will pulse at a 2 Hz rate when the 24VDC monitor function is
disabled. The 48VDC, 24VDC FAIL and 12VDC FAIL will pulse when either the
POWERDOWN or NRESET input is False (low). See section 2.12.2.
4.1.4 12VDC FAIL INDICATOR
A red 12VDC FAIL indicator will illuminate when the CMUip-2212 is in FSA as a result of a
12VDC cabinet power supply fault.
4.1.5 CONFLICT INDICATOR
A red CONFLICT indicator will illuminate when the CMUip-2212 is in FSA as a result of a
Conflicting Channels fault. See section 2.2. The CONFICT indicator will flash at 2Hz when
a Flash Rate Fail fault has been detected on a FYA channel. See section 2.16.4.
4.1.6 LACK OF SIGNAL INDICATOR
A red LACK OF SIGNAL indicator will illuminate when the CMUip-2212 is in FSA as a
result of a Lack of Signal Inputs fault. See section 2.5.
4.1.7 MULTIPLE INDICATOR
A red MULTIPLE indicator will illuminate when the CMUip-2212 is in FSA as a result of a
Multiple Inputs fault. See section 2.6.
4.1.8 CU INDICATOR
A red CU indicator will illuminate when the CMUip-2212 is in FSA as a result of a Type 62
command from the ATC (see section 2.4.
4.1.9 LOCAL FLASH INDICATOR
A red LOCAL FLASH indicator will illuminate when the CMUip-2212 is in FSA as a result of
the LOCAL FLASH STATUS input is inactive (see section 2.9), or CB TRIP STATUS is
inactive (see section 2.10).
