Agilent Technologies J2126A Installation And Verification Manual page 155

CAU TI O N
Minimum test loopback requirements
Self Test
All tests
Confidence Tests
(This runs all the
confidence tests given
below)
Confidence Tests
(10Gb/s Optics)
Confidence Tests
(2.5Gb/s - 52 Mb/s
Optics)
Confidence Tests
Unbalanced Electrical
Ports (52 Mb/s down
to DS3)
Confidence Tests (E1
Balanced Ports)
Confidence Tests
(DS1 Balanced Ports)
Optical Power Tests
Note - A**, for Option 120/121, 10 Gb/s interface ONLY no attenuation is required.
Installation and Verification Manual
Safety precautions care and connection cleanliness must be observed
to ensure that the optical connections are not damaged or degraded.
Ensure the recommended optical attenuation is present in all optical
loopback connections as failure to do so could cause self test failure or
damage to the optical receivers.
Optical Loopback Electrical
(Use 15 dB Loopback
attenuator when
required)
Loopbacks are option
dependent
A**, B, C, D, E, F
A**, B, C, D, F
A**
B, C
D
E
F
A, B, C not required
Self Test Overview
DCC Loopback Ethernet
plug Loopbacks
Use when
Ethernet Module
is fitted
G H, J
not required
not required
4
153