Digital Signal Inputs - Wavetek ANT-20 Operating Manual

ANT-20/ANT-20E
2 Receiver section
2.1

Digital signal inputs

2.1.1 Signal input [44], optical
Destruction of input [44]
The maximum input level of -8 dBm must not be exceeded. Otherwise, the optical input can be
destroyed.
⇒ Insert an optical attenuator in any case:
– for RX - TX loop operation
Caution
– for higher input levels
Connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.5 mm (PC)
"Fiber-to-fiber" adapter for direct connection to various
2.5 mm connector types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . see list of accessories
Input sensitivity
STM-16/OC-48 *** . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .-8 to -28 dBm
Max. permitted input level . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -8 dBm
Wavelength . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1100 to 1600 nm
The receiver meets the requirements of ITU-T G.957 classes S16.2, L16.2, L16.3 or S16.1 and
L16.1.
Optical signal level display
Resolution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 dBm
Accuracy. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ±3 dB
LOS (Loss of Signal) status display
LED is on when the signal input is active but no signal is present.
LOS threshold . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . < -30 dBm
Specifications OC-48c/STM-16c
Concatenation Options
S-39