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Operation
Network Configuration Screen
The Network Configuration screen shown in
that determine operating parameters for the network interface of the DSU. Each option is identified
by a selection number or letter, and displays its current setting.
lists the settings available for each option.
[1] Network Frame Control:
[2] Network Frame Type:
[3] Network Line Code:
[4] Network Interface Type:
[5] Network Line Buildout Control:
[6] Network Line Buildout:
[7] Network Pre-Equalization:
[8] Network Tx Clock Source:
[9] Network Fallback Clock Source:
[a] Network Ones Density:
[b] Network Inband Loopback Type:
[c] Network AIS Loopdown (Seconds):
[d] Network ESF Mode:
[e] Network FDL DCC:
[0] RETURN TO PREVIOUS MENU
Figure 3-9
Table 3-2
SC 553 Network Configuration Option Settings
Option
[0] Return to Previous Menu
[1] Network Frame Control:
[2] Network Frame Type:
[3] Network Line Code:
[4] Network Interface Type:
[5] Network Line Buildout
Control:
076R155-000
Issue 7
NETWORK CONFIGURATION
Select: [ ]
Network Configuration Screen
Returns display to the Configuration menu screen
Manual (Default)
Auto – DSU adapts to either ESF or D4 framing based on the signal it receives.
Caution: Do not enable Auto Framing for both DSUs on a link.
ESF (Default)
D4
Unframed
B8ZS – Bipolar with 8 Zero Substitution encoding for the network side (Default)
AMI – Alternate Mark Inversion encoding for the network side.
DS-1 for connection to a T1 line (Default)
DSX-1 for connection to the cascade port of another DSU or to a CSU
Manual (Default)
Auto
Caution:
Do not enable automatic LBO for both DSUs in a pair connected back-to-back.
Do not enable automatic LBO when the DSU is connected to a DS1 Interface Con-
nector (Smart Jack): use manual LBO with 0 dB attenuation.
SpectraComm 553 Fractional T1 DSU
Installation and Operation Manual
Figure 3-9
presents a screen of configuration options
Table
3-2, which follows the figure,
Manual
ESF
B8ZS
DS-1
Manual
0 dB
0-130ft
Receive
Internal
Disable
None
Inhibit
None
Disable
Potential Settings
Terminal Interface
3-11
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