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Packet over SDH (POS)
Setting IP Payload
Setting IP Payload
How To
1 This procedure assumes you have already selected a POS payload on the MAIN
SETTING page, see "Setting up the Transmitter for POS Payloads" page 185.
2 Select the
3 Set the SETUP field to
The IP Payload selections offered are:
• 2
• All Ones.
• All Zeros.
• 0xAA55 pattern
• 16-bit or 32 bit (BIN or HEX) user selectable word.
4 Set the PAYLOAD FIELD as required. Note that your choice of payload can
affect the stability of the Packet Rate value (due to HDLC stuffing). To eliminate
any uncertainty due to stuffing you should choose carefully the IP header and
payload so that no stuffing takes place. Selecting a fixed word instead of a PRBS
is recommended.
194
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folder as shown below.
POS SETTINGS
IP PAYLOAD
23
-1 PRBS. (The PRBS can be non-inverted or inverted.)
.
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