8 OLP-87/OLP-87P
1 INTRODUCTION
OLP-87/OLP-87P POWER METERS
Please note that the descriptions which follow apply to OLP-87/
OLP-87P/xy as indicated in the table above.
Connector type
The connection is made with a contact type connector. Make
sure that the connectors used are designated
.../PC or …/APC.
1490/1550 nm selective power measurements
All OLP-87/OLP-87P instruments feature a port to which PON
downstream links (from OLT, Optical Line Termination) can be
connected. The signals at wavelengths 1490 nm and 1550 nm
are filtered and measured separately (does not apply to
BN 2305/01, BN 2305/21 and BN 2305/26). This power meter
port is calibrated at the respective center wavelength.
Through path
The through path links the signals from ONT (1310 nm) and OLT
(1490 nm and 1550 nm). Signals are passed through to the
1490/1550 nm port and vice versa. The OLP-87/OLP-87P can be
inserted into the PON network transparently.
Burst power measurements at 1310 nm
The OLP-87/OLP-87P can also be used to measure burst type
signals as found in PON uplink paths at 1310 nm in FTTx mode.
The average burst power is displayed independently from the
burst duty cycle (active/idle). This power meter port is calibrated
at the respective center wavelength.
1550 nm –
II
1270 nm – –
I
1578 nm – –
I
Broadband Power
Meter
II
1) I1)
1) Software option
BN 2305/xy
(partially BN 2306/xy)
01, 21, 26 11, 31, 36 66
To Next Page