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Oscillator 87J

Operating Mode

Output Transformer ConfigurationUsed for tracing wire pairs. The cable pair is connected across the output transformer.
Single Ended Configuration Use for tracing cables
One output is connected to the cable the other is connected to ground.
DIS Configuration Allows pair tracing while connected to the exchange without drawing current.
A DC blocked connection is made via an internal capacitor.
Short Circuit Detection An LED lights to indicate a short circuit on a cable pair up to 2km long