# t1 lineCoding

#### Syntax

t1 channel lineCoding { ami | b8zs }

no t1 channel lineCoding

#### Release Information

Command introduced before JunosE Release 7.1.0.

#### Description

Specifies the type of line coding used by a specific T1 channel on a CT3 interface. The no version restores the default value, b8zs.

| Note: This command is deprecated and may be removed completely in a future release. No alternate command exists, because line coding can be specified only on the bottom layer.

#### Options

- channel—One or more individual T1 channels, ranges of T1 channels, or combination of individual channels and ranges, in the range 1–28 (no spaces); for example, 3,7-15,19-13,27
- ami—Specifies alternate mark inversion
- b8zs—Specifies bipolar with eight-zero substitution

#### Mode

Controller Configuration