Performance Verification
ORR24 Instruction Manual
13
Table 2: Test equipment (cont.)
Description
Example product
Minimum requirements
1300 or 1550 nm impulse
generator
pulse width < 6 ps
Clark MXR ErF
t
picosecond 1550 laser
Sampling oscilloscope with
sampling head
11800 series or CSA800
series with SD-22 sampling
head)
SMA-to-SMA cable
50
W
with 2 ns delay
015-0560-00
PC with GPIB port and
printer
printer output of sampled wave-
forms
Adjustable single-mode
optical attenuator
4 decades, 9
m
m core fiber, FC-
style connectors
Tektronix OA5002
Digital voltmeter
4 1/2 digit
Keithley 2000 or
Tektronix DMM916
50
W
termination
±
1%
011-0049-01
BNC-to-banana adapter
BNC female to dual banana
103-0090-00
Optical cable
FC-FC multimode, 9
m
m, 2 meters
174-1910-00
Inline optical adapter
FC female to FC female
131-5039-00
Low-pass filter
1 GHz
Mini Circuits SLP 1000
1
CW and modulated mode available: modulation with OFF level at or below 0.1
m
W,
optical falltime < 1
m
s
NOTE
. To guarantee compliance with OC-48 boundary limits, you must connect
the ORR24 Optical Reference Receiver to the input of an SD-22 sampling head
using the 015-0560-00 cable provided. The ORR24 is designed for the electrical
characteristics of the cable and the particular frequency response and low noise
of the SD-22.
The reference receiver under test and the test equipment and should be warmed
up for 20 minutes at an ambient temperature between 20 and 30
_ C.
Output Zero
1. Attach the output of the ORR24 to the voltmeter inputs with a 50
W
termination and BNC-to-banana adapter.
2. Install the optical dust cover on the input of the ORR24.
3. Check that output voltage is
≤
±
1 mV. Record the result on the test record.
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