Chassis Features
Page 22
7450 ESS-7
3
(cont)
Reference
1, 2
The Reference LEDs indicate the status and quality of the individual
timing sources.
• Green: Qualified and selected as clock reference input.
• Green (blinking): Qualified but set as the standby clock reference.
• Amber: The reference is enabled (
no shutdow
n) but not qualified.
• Unlit: Not in use, not configured.
3
Building integrated timing supply (BITS) network clocking: Derives
network timing from the central office (CO) BITS.
• Green: Qualified and selected as clock reference input.
• Green (blinking): Qualified but set as the standby clock reference.
• Amber: The reference is enabled (
no shutdow
n) but not qualified.
• Unlit: Not in use, not configured.
Power Supply
1,2,3,4
• Green: Indicates that a power entry module is installed and operational
in the associated slot.
• Amber: Indicates an error condition with an installed power entry
module in the associated slot.
• Unlit: Indicates that a power entry module is not installed or not
recognized.
• Only LEDs 1 and 2 illuminate for the 7450 ESS-7 model.
• In the 7450 ESS-7 model, the power supply LEDs on the secondary
SFM will light similarly to the primary SFM. A fault is indicated in one
SFM if the primary power supply LED and the comparable LED differ.
The SFM should be returned for repair. This may indicate a fault in the
SFM fuse system.
Fan Status
Fan Status LEDs
1,2,3
• Green: Indicates that the fan tray is installed and operational.
• Amber: Indicates a fan tray removal or failure.
• Unlit: Indicates that the fan tray is not installed.
• Only LED 1 and 2 illuminate for the 7450 ESS-7 model.
• In the In the 7450 ESS-7 model, the fan status LEDs on the secondary
SFM will light similarly to the primary SFM. A fault is indicated in one
SFM if the primary fan status LED and the comparable secondary LED
differ. The SFM should be returned for repair.
Compact Flash
1,2,3
• Green: Indicates that the flash card is operational and in a read or write
process.
Note:
Do not
physically remove or attempt to remove the flash card
when the LED is lit green.
• Amber (blinking): Error condition exists.
• Amber (solid): Indicates that the slot is in an operationally down mode.
This is the only mode to safely remove the flash card.
• Unlit: A flash card is not installed in the slot.
Table 5: SF/CPM Field Descriptions (Continued)
Key
Label/Part
Sub
category
Description
Summary of Contents for 7450 ESS-7
Page 1: ...7450 ESS 7 INSTALLATION GUIDE February 2008 Document Part Number 93 0048 07 01 93 0048 07 01...
Page 6: ...Page 6 7450 ESS 7 Table of Contents...
Page 14: ...Preface Page 14 7450 ESS 7...
Page 28: ...Chassis Features Page 28 7450 ESS 7 Figure 6 7450 ESS 7 DC Power Entry Module SR70022...
Page 36: ...7450 ESS 7 System Installation Process Page 36 7450 ESS 7...
Page 108: ...Installing MDAs Page 108 7450 ESS 7...
Page 116: ...LEDs and Optics Page 116 7450 ESS 7...