ADTRAN 1000R Series framing [d4

Command Reference Guide T1 Interface Configuration Command Set

framing [d4 | esf]

Use the framing command to configure the framing format for the T1 interface. This parameter should

match the framing format supplied by your network provider. Use the no form of this command to return

to the default value.

Syntax Description

d4 Specifies D4 superframe (SF) format.

esf Specifies extended superframe (ESF) format.

Default Values

By default, the framing format is set to esf.

Applicable Platforms

This command applies to the NetVanta 1000R, 3000, 4000, and 5000 and Total Access 900 Series units.

Command History

Release 1.1 Command was introduced.

Functional Notes

A frame is comprised of a single byte from each of the T1’s timeslot s; there ar e 24 timeslot s on a single T 1

circuit. Framing bits are used to separate the frames and indicate the order of information arriving at the

receiving equipment. D4 and ESF are two methods of collecting and organizing frames over the circuit.

Usage Examples

The following example configures the T1 interface for D4 framing:

(config)#interface t1 1/1

(config-t1 1/1)#framing d4