IPmux-1/1EInstallation and Operation ManualAppendix E Parameters and Screens

Table E-11. E1 Physical Layer Configuration Parameters

Parameter

Possible Values

Remarks

 

 

 

Channel Status

Enable

Detection of LOS alarm

 

Disable

No detection of LOS alarm

 

 

Default value: Enable

 

 

 

Transmit Clock Source

Adaptive

Adaptive clock regeneration

 

Loopback

The E1 recovered receive clock is used as the transmit clock.

 

Internal

A local clock source is used.

 

Default value: Adaptive

 

 

 

 

 

Loopback State

Internal

Data received from the IP network side will be looped back to

 

 

the network transmit line. An unframed all ‘1’ code (AIS) will

 

 

be transmitted in the E1 Tx path toward the PBX. Incoming

 

 

data from the PBX will be ignored.

 

External

Data received from the PBX at the receive E1 line will be

 

 

looped back to the E1 Tx path (toward the same PBX), and will

 

 

continue its way to the IP network. Data coming from the IP

 

 

network will be ignored.

 

Disable

No loopback; regular operation

 

 

Default value: Disable

 

 

 

Rx Sensitivity

–10 dB,–32 dB

Maximum attenuation of the receive signal that can be

 

 

compensated for by the interface receive path

 

 

Default value: E1: –10 dB

 

 

 

Line Type

 

Framing mode and operation mode for each configuration

 

Unframed

Framer will be configured to pass through mode and the

 

 

operation mode will be set to Transparent (see Chapter 1)

 

CRC4 Enable

Framer will be configured to CRC4 MF mode. Operation

 

 

mode will be set by Signaling Mode field #6 to either

 

 

Fractional or Fractional with CAS (see Chapter 1).

 

CRC4 Disable

CRC4 MF mode is disabled. Operation mode will be set by

 

 

Signaling Mode field #6 to either Fractional or Fractional with

 

 

CAS (see Chapter 1).

 

 

Note: Changing the Line Type setting disables the Line.

 

 

Default value: CRC4 enabled

 

 

 

Idle Code

00 to FF

Determines the idle code inserted into unused timeslots by

 

 

IPmux-1 at the transmit path towards E1 equipment.

 

 

Note: This field will not appear if “unframed” is selected in the

 

 

Line Type field.

 

 

Default value: 7E

 

 

 

IPmux-1 E1/T1 Configuration

E-15

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RAD Data comm IPmux-1E operation manual Table E-11. E1 Physical Layer Configuration Parameters

IPmux-1E, IPmux-1 specifications

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