Cisco Systems IGX 8 Arkusz Specyfikacji Pobierz pdf (Strona 5)

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T1 Interface

Line Rate: 1.544 Mbps, ± 50 bps (± 200 bps VCO lock range).

Line Code: Bipolar AMI or B8ZS.

Framing Formats: Fractional T1, adjacent or alternating channels.

Minimum of four DS0 channels required.

Signal Level: DSX-1 compatible.

Line Impedance: Terminated = 100 Ohms nominal. Bridged = 1 KOhm.

Pulse Amplitude Individual pulse amplitude 2.4 V–3.6 V (making a total

base-to-peak amplitude of 6 V ± .6V)

Minimum Pulse Density: Zero code suppression, either LSB or MSB.

Frame Format: D4 and Extended Superframe (ESF).

VF Signalling: Robbed bit D4 with A and B bits.

Max. Line Lengths: Up to 533 feet with equalizers using ABAM cable.

Jitter Transfer: Meets AT&T PUB 62411 speciﬁcations.

Jitter Tolerance: Meets ANSI standards and AT&T PUB 62411 specs.

Connector: DB 15 female.

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Cisco Systems IGX 8 Arkusz Specyfikacji Strona 5