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P31043 T-Carrier Data Isolation Interface

  • P31043 - T-Carrier Data Isolation Interface
    P31043 - T-Carrier Data Isolation Interface

The primary function of the P31043 is to provide isolation from voltages while being "transparent" in the circuit. All signaling information will be unaffected.  However, DC signaling is not supported. A secondary function is to provide for the loopback of DC simplexed sealing current/repeater powering current on the remote (Central Office) side of the transformer. No powering is required for this device.

There are no 1 amp "sparkover identification" fuses or other extraneous step potential difference between the station and remote sides of these isolation transformers that would cause the circuit to shut down and compromise "Class A" or "Class B" service. The purpose of the transformer is to protect the customer's station equipment. It is sufficiently robust to do the job without gimmicks to "protect the protector."

P31043 T-Carrier Data Isolation Interface

This standalone transformer provides an isolated interface for 2-wire DS1 (such as T1) data circuits. It is a passive, magnetic-coupled device. Primary to secondary isolation is rated at 65kV BIL. Types of data circuits protected include SuperFrame, Extended SuperFrame, and single or multi-channel DSO transmission, as well as any other digital channel with a primary signaling frequency in the 10kHz - 2MHz range. Frequency response is 10kHz - 10mHz.

4-Wire Configuration

Two P31043 transformers may be used together to provide a 4-wire configuration. In a 4-wire configuration, the center tap of the transmit and receive transformers can be connected to one another to provide sealing current or span line powering current loopback or drainage at the remote side of the interface. The center taps on the station side of the transformers (in a 4-wire configuration) may also be connected to station ground for drainage purposes.

See the performance specifications of P31043 T-Carrier Data Isolation Interface.

To access the DATA RATE chart of SNC Telecom Parts, refer to Data Rate Chart for Lyte Lynx® Cards.

For more detailed information on Lyte Lynx® 56kbs/HDSL T-Carrier Data Isolation Interfaces, refer to installation instructions T0360.