COMSPHERE 3500 Series Data Service Units
Figure 4-14. S5 Default Settings, Model 3510 and Model 3511
Switch Selection
S1–1
S1–2
S1–3
S1–4
S1–5
S1–6
F = Front
R = Rear
1
Selections are the same for Model 3510 and Model 3511 unless otherwise noted.
4-18
Table 4-3
Model 3510 and Model 3511 DSU Straps S1 through S5
Position
—
Selects source of timing signals (see
—
Selects source of timing signals (see
R
Disables circuit assurance function
F
Enables circuit assurance function
R
Holds DSR lead off during LL testing
F
DSR lead normal during LL testing
R
Disables elastic store function
F
Enables elastic store function
R
Disables remote digital loopback testing
F
Enables remote digital loopback testing
(1 of 3)
Function
July 1999
1
Table
4-4)
Table
4-4)
3510-A2-GN32-70