Cisco Systems IGX 8 Manual De Usuario

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.