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Functional Overview
2–4
CTS 710 SONET Test Set User Manual
Rear-Panel Controls and Connectors
Power
Connector
Principal
Power
Switch
Fuse
V
GA
Video
Output
GPIB
Port
RS-232
Port
(Connector
Not Used)
1.544 Mb/s
BITS
Timing
Reference
Input
Overhead
Add/Drop
Port
Calibration
Signal
Output
Ground
External Clock
Input (Optional)
Figure 2–3: Rear-Panel Controls and Connectors
Front-Panel Status Lights
The status lights make it easy to quickly determine the condition of
the received signal. There are three types of front-panel status lights.
H Green status lights. Green lights indicate whether a signal is
present and whether the CTS 710 has locked onto the signal.
H Red status lights. When a red status light is on, it means that the
indicated event is occurring. When the red light is off, no event is
occurring.
Functional Overview
2–4
CTS 710 SONET Test Set User Manual
Rear-Panel Controls and Connectors
Power
Connector
Principal
Power
Switch
Fuse
V
GA
Video
Output
GPIB
Port
RS-232
Port
(Connector
Not Used)
1.544 Mb/s
BITS
Timing
Reference
Input
Overhead
Add/Drop
Port
Calibration
Signal
Output
Ground
External Clock
Input (Optional)
Figure 2–3: Rear-Panel Controls and Connectors
Front-Panel Status Lights
The status lights make it easy to quickly determine the condition of
the received signal. There are three types of front-panel status lights.
H Green status lights. Green lights indicate whether a signal is
present and whether the CTS 710 has locked onto the signal.
H Red status lights. When a red status light is on, it means that the
indicated event is occurring. When the red light is off, no event is
occurring.