Carrier Interface; Land-Based Carrier; General Engineering Considerations - Nortel Meridian 1 Manual

Remote peripheral equipment

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Carrier interface

The SL-1 RPE hardware interfaces with LD-1 carrier apparatus, which

conforms to the T1 industry standard. Therefore, any carrier system

conforming to T1 signaling standards should be able to interface with SL-1

RPE. Minor differences in carrier maintenance can generally be

accommodated by option switches in the carrier interface card.

In addition to the T1 carrier rules, the following standards apply:

— The distance from local to remote equipment cannot exceed 112.7 km

(70 mi).

— Line repeaters are powered from the office repeater bay (ORB), since no

power is available from the SL-1 interface.

— The SL-1 interface with the LD-1 carrier line contains an M-type

fault-location filter (3017 Hz) without level-of-polarity options. The FL

filter is powered by the SL-1 RPE equipment. No other M-type filters can

be used in the same span.

RPE Description, installation, and testing

Page 35 of 60

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