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T1/E1 & T3/E3 Commands

2-66 Configuring T1/E1 and T3/E3 Subsystems

equipment

For T3/E3 controllers only

ThiscommandconfigurestheT3/E3controllerasnetworkorcustomerequipmentandoperates

accordingtotheT1.403ANSIstandard,allowingequipmentconfiguredasnetworkequipmentto

disregardnetworkloopbackcommandsfromthefar‐enddevice.

Syntax

equipment {customer | network} loopback

Syntax of the “no” Form

Thenoformofthiscommandsetstheequipmentvaluetoitsdefault:

no equipment

Mode

Controllerconfiguration:XSR(config-controller)#

Default

Customerequipment

Example

ThefollowingexamplesetstheT3controllerinslot1,card2asnetworkequipment:

XSR(config-controller<T3-1/2/0>)#equipment network loopback

framing

ThiscommandsetstheT1/E1orT3/E3framingtype.Framingmustmatchbetweenthecircuit

providerandtheT1/E1orT3/E3interfacewiththecircuitproviderdeterminingwhichframing

typeisrequired.

FramingtypedefinesthetypeandformatofthetransmissionframeforT1orE1lines.T1lines

have

twoframeformats:SF(SuperFrame,D4,F12)andESF(ExtendedSF).E1lineshavethese

frameformats:CRC4(multiframe)andNO‐CRC4(doubleframe).

ForunchannelizedT3ports,theC‐bitframingformatisavailablewithM13asanoption.Forboth

channelizedandunchannelizedE3ports,theG751frame

formatisavailable.Also,thebypass

framingformatspecifiesthattheG.751framingformatwillbebypassed.

Note: Since remote loopback requests are available only when C-bit framing is invoked for a T3

port, the equipment command is useful only when framing is set to C-bit.

customer

Controllersetascustomerequipment.Itallowsaremotelyactivated(feac)

payloadloopfromtheT3line.

network

Controllersetasnetworkequipment.Itdisallow sremotelyactivated(feac)

payloadloopfromtheT3line.

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