9
Table 5. Data Port Channel Configuration Options (2 of 2)
Option
Factory
Comments/Description
Clear
Clears (unassigns) channels for this port.
Start At:
N1 (D1)
N2 (D2)
N3 (D3)
•
•
•
N31 (D31)
This configuration option appears if the “Assigned By”
configuration option is Block or ACAMI.
Line 1 Displays:
Line 2
Displays:
Comments/Description
—
N1 N2 N3... N31:
(If assigned to NET)
Prt1, Prt2,
Prt3, Prt4
This configuration option appears if the “Assigned By”
configuration option is individual channels (Chan).
D1 D2 D3... D31:
(If assigned to DTE)
D1, D2... D31
Function key under the channel (N1, N2 etc.) assigns
(unassigns) port (1 2 3 or 4) to that channel
(If assigned to DTE)
N1, N2... N31
(unassigns) port (1, 2, 3, or 4) to that channel.
NOTE: Configuration options in this table are made available after Prt
n (where n is 1 or 2 for the Model 3172
and 1, 2, 3, or 4 for the Model 3174) is selected from the Channel Config screen.
Table 6. General Configuration Options
Option
Factory
Comments/Description
NET
DTE
Pri Clk Src:
Prt
n
Selects the primary clock source for the DSU/CSU.
Int
y
Ext
NET
DTE
Sec Clk Src:
Prt
n
Selects the secondary clock source for the DSU/CSU,
used in the event of failure of the primary source.
Int
used in the event of failure of the primary source.
Ext
Clock Rate:
2048
Selects the clock rate of the source if external
Clock Rate:
8
Selects the clock rate of the source if external.
