Timing sourceTiming source
FollowsFollows
This screen allows you to make the physical setup of the PDH transmitter in E4
mode. It can also be used to inspect the current status of the selected port.
The configuration options available in the setup area of the screen are
described below. The status information is described in Status Summary.
Select the clock source.
InternalInternal: Internal clock of the module
ExternalExternal: The clock provided from the Ext Clock connector
ReceivedReceived: The clock generated from the received signal
When ExternalExternal or ReceivedReceived is set, the right hand lamp indicates whether clock
is detected or not.
55..77..11..22 E4 Signal SetupE4 Signal Setup
Touching the transmitter's E4E4 button in the navigation area will display the
same screen as E3 Signal Setup.
To make the Port 2 transmitter follow the Port 1 transmitter (i.e. copy its
settings) when using Port 1 and Port 2, touch the drop-down menu in the
navigation area and select the Tx1Tx1. The Port 2 settings continue to follow the
Port 1 transmitter change. The default setting is NoneNone. Note that the Port 1
transmitter cannot follow the Port 2 transmitter.
PCM framePCM frame
Use the PCM framePCM frame radio buttons to enable (OnOn) or disable (OffOff) insertion of
PCM frame in the transmitted signal.
Pattern typePattern type
Select the pattern to be inserted in the transmitted signal. Refer to Pattern type
in "E1 Setup and Status". Available patterns are:
OffOff
User [32] bitUser [32] bit, User [2048] bitUser [2048] bit
PRBS 9PRBS 9 to PRBS 31PRBS 31
QRSS 20QRSS 20
All 0'sAll 0's, All 1'sAll 1's
Alternating 1:1Alternating 1:1, Alternating 1:3Alternating 1:3, Alternating 1:7Alternating 1:7, Alternating 3:24Alternating 3:24
Touch 'Normal' or 'Inverse' pattern type.
Touching the 'ITU standard' button will apply ITU-T O.150 recommended
Pattern typePattern type for 140 Mbit data rates (PRBS 23 Inverse).
User patternUser pattern
User pattern field is enabled if Pattern type is set to User [32] bitUser [32] bit or User [2084]User [2084]
bitbit. Touch the User patternUser pattern field and use the launched Pattern EditorPattern Editor dialog box
to define the user pattern. Depending on the selected pattern type, different
user pattern setup options will be available.
The length can be any length from 1 bit to 32 bits or from 1 bit to 2048 bits.
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