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2-4
Table 2-1
Option Application Notes — Switchbank S13, CSU
Characteristics
Option
Selection
Configuration
Soft
Mode
Hard
Line Framing
ESF*
D4
Unframed
Auto
Framing
Network Line
DS-1
Type
DSX-1
* Factory default selection.
GDC 048R154-000
Switch
Position
S13-1
Off*
DSU can be configured by a
VT100-compatible terminal
connected to the Console port. The
positions of other switches may
not reflect the actual configuration
of the unit when this is selected.
View the terminal interface
Configuration screen for current
settings.
S13-1
On
DSU can only be configured by
means of pc board hardware
switches
S13-2
Off*
Selects ESF Framing
S13-3
Off
S13-2
Off
Selects D4 Framing
S13-3
On
S13-2
On
Selects unframed data
S13-3
Off
transmission
S13-2
On
Enables Auto Framing; the Desk-
S13-3
On
Top T1 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.
S13-4
Off*
Selects the line interface to operate
as a DS-1 network interface for
connection to a T1 line.
S13-4
On
Selects the line interface to operate
as a DSX-1 interface for
connection to the cascade port of
another DSU or to a CSU.
(Continued on next page)
Installation
Description
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