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: | |
Line Impedance: | Terminated = 100 Ohms nominal. Bridged = 1 KOhm. |
Pulse Amplitude | Individual pulse amplitude 2.4 |
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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. |
