T1/E1 Frame Generator Module


The T1/E1 Frame Generator module produces the timing signals to create DS1, E1, and Composite Clock outputs. The DS1 (ESF only) and E1 signals can include Synchronization Status Messages (SSM), if required. The Clock Bypass function allows the module to continue generating normal output signals when both clock modules are in warm-up mode or when the clocks have been removed from the unit. The module's LEDs are described in the following table and the screen's fields are described in the table below.

Indicator

Color

Description

POWER

Green

On = Module is receiving power

FAULT

Red

On = Module failure

Blinking = Module is disabled

Field/Section

Description

Frame Generator Status

Indicates status of Frame Generator

AID

Identifies which module is referenced

Module Type

Indicates type of frame generator being referenced. Values: T1/E1 (SSM), T1/E1, T1, and E1

Clock 1 and Clock 2

 

Frame Type

Indicates type of frame generated. Values: T1, E1, CC, 1.544, and 8K

Signal Type

Indicates type of signal being generated. Values: D4, ESF, CAS, CCS, 50/50, and 63/37

CRC

Cyclic Redundancy Checking - A process used to check the integrity of a block of data. Values: ON or OFF

Zero Suppression

Indicates type of zero suppression. Values: HDB3 or AMI

SSM

Indicates whether SSM is ON or OFF

Alarm Status

Indicates whether any alarms are currently active

Alarm

Indicates the alarm number

AID

Indicates alarm AID

Notification Code

Indicates alarm level. Values: Critical, Major, or Minor

Condition Type

Condition type for alarms or events

Service Affecting

This field Indicates whether an alarm response message affects service. Values: SA or NSA

Description

Text description of the alarms indicated