Download SunSetTM E20

3) FRAMING
Options: PCM-30 (F1), PCM-31 (F2)
• Choosing PCM-30 means the set will synchronize on both Frame
Alignment Signal (FAS) and MultiFrame Alignment Signal
(MFAS)
• Choosing PCM-31 means the set will synchronize only on Frame
Alignment Signal.
• If the framing and CRC-4 state of the received signal do not
exactly match the framing and CRC-4 settings, the SunSet will
display Loss of Frame condition and may display loss of CRC
DET
• Choose the framing that is appropriate for the circuit under test.
• If you are unsure of the proper framing, push the AUTO key.
• Use the combination which synchronizes properly and/or allows
error free measurement results.
Note that HDB3 is the default line code. The line code is
configured in the following menu: MAIN MENU/ SYSTEM
PARAMETERS/ MEAS CONFIGURATION.
4) CRC-4
Options: YES (F1), NO (F2)
CRC-4 YES allows the SunSet to measure CRC-4 errors on the
incoming signal and to transmit the CRC-4 bits on the outgoing
signal.
•If you are unsure of the proper framing, push the AUTO key
5) L1-Rx Port and L2-Rx Port
Options: TERM (F1), BRIDGE (F2), MONITOR (F3)
• L1-Rx Port and L2-Rx Port configure the two 2.048 Mbps
receivers.
• These settings let the SunSet E20 electrically decode a 2.048
Mbps signal under a wide range of resistive or cable losses.
• They determine which electrical load will be placed on the circuit
by the SunSet.
• A 2.048 Mpbs line requires exactly one low impedance termination.
• These settings have no effect on the transmitters.
Ch.3 Menus
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