Chapter 3 Product Specification
alarms is given in the appropriate SS7G2x <Operating Mode> User Manual. Section 2.10, “Related Information” on page 13 lists the various user manuals.
•MNR Alarm LED (amber)
When lit continuously, indicates the presence of a minor fault. A minor fault is an error or event that is detected by the unit but has little or no impact on the actual unit’s operation. The full list of minor alarms is given in the appropriate SS7G2x <Operating Mode> User Manual. Section 2.10, “Related Information” on page 13 lists the various user manuals.
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PWR Alarm LED (amber)
When lit continuously, indicates the presence of a power fault. The power alarm relay is engaged.
0 Activity/Fault LED (green/amber)
Indicates SCSI Hard Disk Drive (HDD) 0 activity when green, or a SCSI HDD 0 fault when amber.
1 Activity/Fault LED (green/amber)
Indicates SCSI Hard Disk Drive (HDD) 1 activity when green, or a SCSI HDD 1 fault when amber.
ON LED (green)
When lit continuously, indicates the presence of DC power in the product. The LED goes out when the power is turned off or when the power source is disrupted.
NIC Activity LED (green)
Indicates activity on either network interface, ENET1 or ENET2.
ID LED (white)
This white LED is used in conjunction with the ID switch, and back panel ID LED (blue), to provide a service technician facility to highlight a specific SS7G21 or SS7G22 in a rack of similar units. The LEDs can be illuminated and deactivated by the ID switch (see description below).
•ID switch
In conjunction with the front and back panel ID LEDs, this switch provides a service technician facility to highlight a specific SS7G21 or SS7G22 in a rack of similar units. Pressing the ID switch toggles the front and back panel ID LEDs between the illuminated and deactivated states.
Back Panel
•ID LED (blue, inside grill)
This blue LED, visible through the grill at the back of the SS7G21 and SS7G22, is used in conjunction with the front panel ID Switch and ID LED (white), to provide a service technician facility to highlight a specific SS7G21 or SS7G22 in a rack of similar units. The LEDs can be illuminated and deactivated by the ID switch (see description above). See Figure 4, “Back Panel Connectors and Indicators” on page 33 for the location of the blue LED.
Visual Indicators on the Ethernet Ports
The Ethernet ports have
Visual Indicator on the Power Supply Module
A single
Power Supply Condition | LED Indication and Color |
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No input power to all Power Supply Modules | Off |
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No input power to this Power Supply Module only | Amber |
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Input power present/Only standby outputs on | Green, Blinking |
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Power supply DC outputs on and OK | Green |
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Current limit; AC modules only | Amber |
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Alert condition; DC modules only |
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NOTE: “Alert condition” means that the module is functional, | Amber |
but the input voltage is close to operational limits. |
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Power supply failure (OTP, OCP, OVP, UV) | Amber |
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