
IP Network Measurement Division
39
40G Quick Start Guide
(
Jitter
)
40G BERTS / MP1797A Setup Flow
40G BERTS / MP1797A Setup Flow
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chart
chart
3. Adjust MP1797A ”Intrinsic Jitter” to smallest point
using 1/1 Clock Phase Adjustment on MUX
2. Confirm the following point of MP1797A
a - Jitter Unlock Alarm should be “OFF”
b - OPT Power Meter Value: Input Sensitivity
0 to –10dbm
c - Frequency Monitor (Setting Bit-Rate)
1. Set MP1797A
a – Bit-Rate 39.9G or 43.0G (Tx and Rx are same bit rate)
b - Optical interface ON
c - TX Jitter : “OFF”
d - RX Range : 2UI
E - Rx Filter : HP1+LP
f - Measurement Time: Repeat / 1s
g – Optical signal ON by Optical Output Key
4. Adjust MP1800A 4ch ED to “No-Alarm / No-Error”
condition by adjusting Data Threshold and 1/1 clock phase
to center position of margin on DEMUX.
5. Confirm Step-2,3 and 4
This Step is important: REPEAT ADJ
1/1 Clock
Phase
1/1 Clock
Phase
Data Threshold
IP Network Measurement Division
40
40G Quick Start Guide
(
Jitter
)
Turn on Optical signal
Turn on Optical signal
Checking Optical Output Key
¾
Insert the key into the optical key switch and Remote Interlock.
Set the key switch to the ON for output the optical signal.
Optical Key Switch
Remote Interlock
20