Tektronix 6 pdhtx free download

File name 6_pdhtx.PDF

Setting PDH Transmit Parameters This section describes how to set the transmit rate, transmit clock, line clock offset, payload, framing, test pattern, active channel and background pattern for a PDH signal. Steps for Setting Parameters The sequence of steps for setting transmit parameters varies depending on the type of signal to be transmitted. Figure 3 44 shows the sequence of steps required to set the transmit parameters for a PDH signal (for example, 2 Mb/s). Set Set Set Transmit Line Set Set Line Payload Set Test Rate Code Clock Clock Offset and Pattern (2 Mb/s, 8 Mb/s, Payload 34 Mb/s, 140 Framing Mb/s) Figure 3 44:Sequence for Setting PDH Signal Parameters Set Set Set Payload Set Test Set Active Rate Clock and Payload Pattern Channel (s) Framing Set Background Pattern (s) Figure 3 45:Sequence for Setting PDH Signal Parameters When Multiplexing a lower rate PDH Signal CTS850 SDH/PDH Test Set CTS850 SDH/PDH Test Set User Manual 3 107 Setting PDH Transmit Parameters Selecting 64k TX Settings If the operator selects a PDH Transmit Rate and a 64k payload on the Transmit Setting screen, the 64k Tx SETTINGS menu is enabled. This menu has all of the setup items required to configure a 64k or N x 64k payload as a base for the 2 Mb/s signal. This menu also is used for a PDH payload on a SDH signal. Figure 3 46:64k Tx SETTINGS from TRANSMIT SETTING Menu Table 3 15:64k Tx SETTINGS Choices 64k TX Settings Choices Framing Selects the framing for the signal. Choices are 2Mb/s PCM30 CAS/CRC, PCM31 CRC, PCM30CAS, and PCM31. Configuration Selects the 64k configuration. The menu choices are 1x64k, Nx64k Contiguous Number of If the configuration is Nx64k, this selects the number of Timeslots contiguous channels (N) that make up the signal. This choice will not display for a 1 x 64k configuration. 3 108 CTS850 SDH/PDH Test Set User Manual Setting PDH Transmit Parameters Table 3 15:64k Tx SETTINGS Choices (Cont.) 64k TX Settings Choices Starting Timeslot This selects the starting (or only) timeslot. Test Pattern This selection is a duplicate of the Test Pattern selection choice