Canoga Perkins EDGEACEESS 9145E, Руководство пользователя, Страница: 50 / 54

9145E Ethernet Network Interface Device User Manual Maintenance
Check Optical Power Levels
50
Figure 6-1 Measuring Transmitter Output Power
6.2.2 Measuring Receiver Input Power
To measure receiver input power, follow these steps (see Figure 6-2):
1. Connect the transmit fiber to the transmit side of the equipment at the local site.
2. Connect a calibrated optical power meter to the end of the transmit fiber at the remote site.
3. Measure and record the optical power on the transmit fiber at the remote site. This is the receiver
input power for the transmit fiber from the local site.
4. Connect the transmit fiber to the transmit side of the equipment at the remote site.
5. Connect a calibrated optical power meter to the end of the transmit fiber at the local site.
6. Measure and record the optical power on the transmit fiber at the local site. This is the receiver
input power for the transmit fiber from the remote site.
7. Compare the receiver input power with the sensitivity level listed on the optical specifications
sheet, located in the Client Support Area of the Canoga Perkins web site. The power level must be
within the sensitivity range listed on the data sheet. If not, contact Canoga Perkins Technical
Support.
8. Compare the receiver input power to the receiver’s saturation (overdrive) level shown on the
optical specifications sheet, located in the Client Support Area of the Canoga Perkins web site.
The power level must be lower than the saturation level. If not, contact Canoga Perkins Technical
Support.
FIBER OPTIC
TRANSMITTER
FIBER OPTIC
RECEIVER
OPTICAL
POWER
METER
-7dBm
λ = 1300 nm