Configuration / DS1 Port Help

To create or change the DS1 port provisioning settings, enter the values, then click the Apply button to save the settings.

To update the displayed settings, click the Refresh button.

Slot Displays the slot number and the card description.

Port The port selected to provision.

DS1 Profile

Oper Status

Indicates the operational status of this port.

Admin Status

The administrative status of the interface.

Values: Up

The interface is enabled and up, and the status of the interface should become standby or operational

Down

The interface is disabled and down, and the status of the interface should become shutdown.

Description

Description for the port.

Circuit Identifier

This variable contains the transmission vendor's circuit identifier, for the purpose of facilitating troubleshooting.

Line Framing

This variable indicates the variety of DS1 Line  implementing  this  circuit.  The type of circuit affects the number of bits per second that  the circuit can reasonably carry, as well as the interpretation of the  usage and error statistics.  The values, in sequence, describe:

other

esf  Extended SuperFrame DS1 (T1.107)

d4  AT&T D4 format DS1 (T1.107)

slc96

e1  ITU-T Recommendation G.704 (not supported in this release)

e1Crc  ITU-T Recommendation G.704

e1Mf   G.704 multiframing enabled

e1CrcMf   G.704 multiframing enabled and crc enabled

e1Unframed E1 with no framing

ds1Unframed Ds1 with no framing

For clarification, the capacity for each E1 type is as listed below: e1 or e1Crc - e1, with framing, no signalling = 31 x 64k = 1984k

e1Mf or e1CrcMf - e1, with framing,signalling = 30 x 64k = 1920k                

Default is set to esf for T1 platforms and e1CrcMf for E1 platforms.

Line Coding

This variable describes the variety of Zero Code Suppression used on this interface, which in turn affects a number of its characteristics.

Supported values:

ami: Alternate Mark Inversion. Used for T1. in this mode no zero code suppression is present and the line encoding does not solve the problem directly. In this application, the higher layer must provide data which meets or exceeds the pulse density requirements, such as inverting HDLC data.

b8zs: refers to the use of a specified pattern of normal bits and bipolar violations which are used to replace a sequence of eight zero bits. ANSI Clear Channels may use zbtsi, or Zero Byte Time Slot Interchange. E1 links, with or without CRC, use hdb3 or  ami.

hdb3: High Density Bipolar of order 3. A code used for E1.

Default is set to b8zs for T1 platforms and hdb3 for E1.

Line Status Change Trap

Specifies whether a line status trap should be sent whenever the DSL line goes up or down. Note that this setting does not apply to line status traps sent during system bootup. During bootup, line status traps are note sent.

A DSL link down trap has a moderate severity level and a link up trap has a low severity.

Default: enabled

Mode

Type of interface.

Values:

dsx DS1 interface is DSX

csu DS1 interface is CSU

other Interface is neither CSU nor DSX

Default: csu

E3 Framing

csu00 is 0 dB for csu ds1 wan for line build out

csu75 is -7.5 dB for line build out.

csu150 is -15.0 dB for line build out.

csu225 is -22.5 dB for line build out

This field is not used for E1 platforms.

Default is csu00

Line Length

The length of the dsx wan is in fees. This objects provides information for line build out circuitry. The valid range is:

dsx0 It is 0 feet for the line build out (LBO) and the default setting.  

dsx133 It is 133 feets for the LBO.

dsx266 It is 266 feets for the LBO.

dsx399 It is 399 feets for the LBO.

dsx533 It is 533 feets for the LBO.

dsx655 It is 655 feets for the LBO.

This field is not used for E1 platforms.

Default is dsx0

Channelization

 Indicates whether this DS1/E1is channelized or unchannelized. The value of enabledDs0 indicates that this is a DS1 channelized into DS0s. The value of enabledDs1 indicated that this is a DS2 channelized into DS1s.  

Default: enabledDs0

Note: This setting cannot be changed..

Single Mode

Specifies the signaling mode.

Values:

none: indicates that no bits are reserved for signaling on this channel.         

robbedBit: DS1 Robbed Bit Signaling is in use. (not supported for E1 lineTypes)

bitOriented: E1 Channel Associated Signaling is in use (only supported for E1 lineTypes)

messageOriented: Common Channel Signaling is in use either on channel 16 of an E1 link or channel 24 of a DS1. This has the same effect as none.

other

Default is set to robbedBit for T1 platforms and messageOriented for E1  

Protocol Emulation

Indicates whether the device is acting as Network-side or CPE with respect to this DS1.   For example,  if  the system is configured with a PBX on the network side of the device, then the device will act as a CPE with respect to the DS1.  If the device is on the network side of a PBX, then this leaf should be set to network, as the PBX would be acting as a CPE.

Signal Type

The signaling type of the FXS interfaces within this DS1.

Values:

loopStart

groundStart

Default: loopStart

Transmit Clock Source

Reflects the source of Transmit Clock.

Values

loopTiming: the recovered receive clock is used as the transmit clock.

Only use this setting if this DS1 is Configured as an eligible clock source (in the System / Device / Clock Source screen), he state of that DS1 is Up and the DS1 resource provider decided this DS1  is to provide the transmit clock for all the DS1s.  Only one DS1 will have this set per platform.

localTiming: a local clock source is used or when an external clock is attached to the box containing the interface.

throughTiming: indicates that recovered receive clock from another interface is used as the transmit clock.

Example: If a DS1 other than this one reflects loopTiming, this DS1 will use that DS1 as its transmit clock. Therefore this DS1 reflects throughTiming.

 Default:  throughTiming

TxClock Adaptive Quality

Determines sync drift when operating in PWE adaptive mode. The options are stratum 1, stratum 3, stratum 3e, or stratum 4 as based on ANSI Standard T1.101 reference for clock quality.

Line Traps

Specifies whether a line status trap should be sent whenever the DSL line goes up or down. Note that this setting does not apply to line status traps sent during system bootup. During bootup, line status traps are note sent.

A DSL link down trap has a moderate severity level and a link up trap has a low severity.

Default: enabled

Payload Scramble

This field describes the enabled status of the Ds1 Cell Scramble mode. If this field is true then Scramble mode is enabled, if this field is false scramble mode is disabled.

Default: true

Coset Polynomial

This field describes the enabled status of the Coset Polynomial mode. If this field is true then Coset Polynomial mode is enabled, if this field is false Coset Polynomial mode is disabled.

Loopback

This variable represents the desired loopback configuration of the DS1 interface. Agents supporting read/write access should return inconsistentValue in response to a requested loopback state that the interface does not support. The values mean:

noLoop: Not in the loopback state. A device that is not capable of performing a loopback on the interface shall always return this as its value.

lineLoop The received signal at this interface does not go through the device (minimum penetration) but is looped back out.

 localLoop The transmitted signal at this interface is looped back and received by the same interface. What is transmitted onto the line is product dependent.

 payloadLoop The received signal at this interface is looped through the device. Typically the received signal is looped back for retransmission after it has passed through the device's framing function.

Default is noLoop

Send Code

This variable indicates what type of code is being sent across the DS1 interface by the device. Setting this variable causes the interface to send the code requested.

Values:

SendNoCode: sending looped or normal data

sendLineCode:sending a request for a line loopback

T1 related sendCodes

sendPayloadCode: sending a request for a payload loopback

sendResetCode: sending a loopback termination request

sendQRSSPattern: sending a Quasi-Random Signal  (QRS)  test pattern

send511Pattern: sending a 511 bit fixed test pattern

send3in24Pattern: sending a fixed test pattern of 3 bits set in 24

sendOtherTestPattern:sending a test pattern  other  than  those described by this object send2047Pattern, sending 2047 test pattern.

send1in2Pattern:sending alternate one , zero pattern.

 sendInbandCode: sending inband loopback command.

sendInbandCodeOff: sending inband loopback off command.

 sendLineCodeOff: sending line loopback command.

sendPayloadCodeOff: sending payload loopback command.

 E1 related send codes:

 send2ToPower9Minus1Pattern: refer to O.153

 send2ToPower11Minus1Pattern: refer to O.152 and O.153

send2ToPower15Minus1Pattern: refer to O.151

send2ToPower20Minus1Pattern: refer to O.153 QRSS bit = 1

send2ToPower23Minus1Pattern: refer to O.151

Only sendNoCode is supported on E1 platforms.

Default: sendNoCode

Related topics:

System / Device / Clock Source

July 30, 2011