CableSHARK
P3
User Guide
173
Section 9 Spectral Detective
The CableSHARK’s Spectral Detective test allows user to bridge onto a live circuit to measure the Power
Spectral Density Noise of the line. The Spectral Detective measures up to 2.2 MHz (or optional 6 MHz) so
users will be able to characterize loops utilizing ISDN, T1 / 2 MBIT/S (E1), HDSL, HDSL2, ADSL, G.SHDSL,
etc. to determine (a) the technology that is being transmitted over the link and (b) the power associated with
the transmitted technology to ensure it is not disruptive to adjacent pairs and technologies.
+ -
CableSHA RK
xD SL C able
Q ual if i er
F1
F2
F3
F4
F5
F6
F7
F8
1
2
A
B
C
3
D
E
F
4
G
H
I
5
J
K
L
6
M
N
O
7
P
R
S
8
T
U
V
9
W
X
Y
0
Q
Z
*
#
RU N
ST OP
E
F
C H G
A W or ld of G o od fo r Yo u r N e two rks
S YS T EM
S ET U P
C A BL E
T ES T S
D MM
T ES T S
R E CA L L
R E SU LT S
13 : 16: 2 0
F
Central Office
Central Office
+ -
CableSHA RK
xD SL C able
Q ual if i er
F1
F2
F3
F4
F5
F6
F7
F8
1
2
A
B
C
3
D
E
F
4
G
H
I
5
J
K
L
6
M
N
O
7
P
R
S
8
T
U
V
9
W
X
Y
0
Q
Z
*
#
RU N
ST OP
E
F
C H G
A W or ld of G o od fo r Yo u r N e two rks
S YS T EM
S ET U P
C A BL E
T ES T S
D MM
T ES T S
R E CA L L
R E SU LT S
13 : 16: 2 0
F
Customer
Customer
CableSHARK
bridges onto an
active line
CableSHARK
bridges onto an
active line
Plu
s
Pl u
s
F
IGURE
9A
–
T
HE
C
ABLE
SHARK
BRIDGES ONTO A
L
IVE
C
IRCUIT
The Spectral Detective provides accurate feedback on PSD shape and power. Users can verify circuits used
in line sharing applications are being properly deployed. Too much transmit power on one circuit can be
spectrally incompatible with adjacent pairs, causing unnecessary truck rolls, frustrated customers, and lost
revenue.
The Spectral Detective test is best performed at the CO or the Customer Premise, where the effects of
NEXT and FEXT can truly be analyzed. Measuring at the crossbox can be useful as well as many
technologies typically converge here before heading to the Customer Premise.
Summary of Contents for CableSHARK P3
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Page 10: ...VF DSL Cable Qualifier viii...
Page 12: ...VF DSL Cable Qualifier x...
Page 26: ...VF DSL Cable Qualifier 14...
Page 36: ...VF DSL Cable Qualifier 24...
Page 64: ...VF DSL Cable Qualifier 52...
Page 80: ...VF DSL Cable Qualifier 68...
Page 184: ...VF DSL Cable Qualifier 172...
Page 192: ...VF DSL Cable Qualifier 180...
Page 224: ...VF DSL Cable Qualifier 212...
Page 228: ...VF DSL Cable Qualifier 216...
Page 262: ...VF DSL Cable Qualifier 250 CSA Loop 6 CSA Loop 7 CSA Loop 8 Extended CSA Loop 9...
Page 263: ...CableSHARK P3 User Guide 251 Extended CSA Loop 10 Mid CSA Loop 0 Mid CSA Loop 1 Mid CSA Loop 2...
Page 264: ...VF DSL Cable Qualifier 252 Mid CSA Loop 3 Mid CSA Loop 4 Mid CSA Loop 5 Mid CSA Loop 6...
Page 265: ...CableSHARK P3 User Guide 253 ANSI Loop 2 ANSI Loop 3 ANSI Loop 4 ANSI Loop 5...
Page 266: ...VF DSL Cable Qualifier 254 ANSI Loop 6 ANSI Loop 7 ANSI Loop 8 ANSI Loop 9...
Page 267: ...CableSHARK P3 User Guide 255 ANSI Loop 11 ANSI Loop 12 ANSI Loop 13 ANSI Loop 15...
Page 268: ...VF DSL Cable Qualifier 256...
Page 286: ...VF DSL Cable Qualifier 274...
Page 292: ...VF DSL Cable Qualifier 280...
Page 294: ...VF DSL Cable Qualifier 282...
Page 316: ...VF DSL Cable Qualifier 304...
Page 318: ...VF DSL Cable Qualifier 306...
Page 319: ...CableSHARK P3 User Guide 307 Notes...
Page 320: ...VF DSL Cable Qualifier 308...