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Verification.book Page 98 Monday, January 19, 2004 1:40 PM
2
Self Test Overview
Loopback Connections Required for Self Test
98
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The self test loopbacks required for each test are listed below.
Those required are dependent on the model, options fitted and
test selected. See diagram on
connections for a J7230B with options 106 & 012.
Optical Loopback Connections (Dependent on instrument
wavelength options fitted)
Use optical cables P/N 1005-0337 and 15 dB attenuator P/N
1005-0433. Units with 9.95/10.71 Gb/s option also use 10 dB
attenuator P/N 1005-1148.
• Connect 9.95/10.71 Gb/s Optical Out <> 10 dB Attenuator <>
9.95/10.71 Gb/s Optical In
• Connect 52 Mb/s-2.5 Gb/s Optical Out <> 15 dB Attenuator <>
52 Mb/s-2.5 Gb/s Optical In
Electrical Connections SONET/SDH 52 Mb/s to 155 Mb/s Use
BNC cable P/N 15525A
• Connect SONET/SDH Out (BNC) <> SONET/SDH In (BNC)
Unbalanced Electrical Connections PDH/DSn 2-140 Mb/s and DS3
(Instruments with Option 012 only)
Use BNC cable P/N 15525A
• Connect 2-140 Mb/s DS3 Out (BNC) <> 2-140 Mb/s DS3 In
(BNC)
Balanced Electrical Connections 2M/DS1
Option 012 only)
Use Bantam cable P/N 15670A
• Connect 2M Out <> 2M In
• Connect DS1 Out <> DS1 In
DCC Loopback Connector
• Connect DCC loopback plug to 9-pin DCC port P/N
J2125-65011
page 99
indicating loopback
(Instruments with
Verification Manual
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