Nevion 3GHD-OE - Manual (Page 9)

3GHD-OE / 3GHD-OE-2 Rev. F
nevion.com | 9
3.3 Reclocker mode
The reclocker can be set to reclock or bypass from DIP#1 and DIP#3 or from GYDA.
When reclocker is set to reclock mode jitter from the signal is removed. Accepted bitrates is
270, 1483.5, 1485, 2967 and 2970Mbps.
When reclocker is set to bypass the converter accept all bitrates between 19.4 to 2970Mbps.
Note that in this mode the jitter is not removed and this can cause problems for equipment
following the converter.
3.3.1 Transparency
This converter only looks at the bitrates and not the content. This means that any signal with
correct bitrates is converted. The product is transparent to data in the ancillary space like
embedded audio.
3.4 Display optical input power (long-haul version only)
On the long haul version the LEDs can be used as an optical power meter. This is practical
under installation of the module. The power measurement is not accurate but can be used as
an indication of optical signal strength. Remember to turn this function of after installation.
When all LEDs are green the optical input power is more than -6.5dBm. When all LED are off
input power is below -25dBm.
The DOP can only be turned on from the DIP. DOP is turned on by DIP#7 and DIP#6 select
input port.
Optical input power Status LED LOS/lock1 LED LOS/lock2 LED
More than -6.5dBm Green Green Green Green
-7.0dBm to –8.5dBm Yellow Green Green Green
-9.0dBm to –10.5dBm Red Green Green Green
-11.0dBm to –12.5dBm Green Green Green
-13.0dBm to –14.5dBm Yellow Green Green
-15.0dBm to –16.5dBm Red Green Green
-17.0dBm to –18.0dBm Green Green
-18.5dBm to
–19.0dBm
Yellow Green
-19.5dBm to –20.0dBm Red Green
-21.0dBm to –22.0dBm Green
-23.0dBm to –24.0dBm Yellow
Below -25dBm Red