DSU Operations
5-433610-A2-GB41-60 March 1999
Control Branch
The Control (Ctrl) branch allows you to enable or
disable the DSU’s transmitter, as well as the DBM’s, and
to display/change the status of the general purpose
external DTE leads.* For a DSU operating in TDM or
MCMP mode, the Control branch allows the transmitter to
be enabled or disabled on a per-port basis. It also allows
you to choose which of the six ports is to have its circuit
leads monitored.
When in TDM or MCMP mode, the following
selections appear:
F1
Control Funct:
TxCtl LEDs ExtL
F2 F3
When in Bridge mode, the following selections appear:
F1
Control Funct:
LEDs ExtL
F2 F3
When in Basic mode, the following selections appear:
F1
Control Funct:
TxCtl ExtL
F2 F3
A DBM can be disabled if it is addressed from the
Remote branch. The Control branch menu has three
selections. Table 5-13 lists the selections on the Control
branch menu.
Table 5-13
Control Branch Menu Options
Menu
Selection Purpose
TxCtl Enables or disables the DSU’s
transmitter, or the DBM’s call
setup or answer capability.
LEDs Selects whether the port or
aggregate data stream is
monitored on the faceplate
LEDs.1
ExtL Provides status and control of
two external input leads and two
output leads available for
optional customer assignment.
1Only applies to TDM or MCMP applications, and
only in Local mode.
Refer to the COMSPHERE 3600 Series Data Service
Units, Models 3610 and 3611, Operator’s Guide for
additional information and examples.
*DSU and DBM subbranches are valid for Local mode only; Devic and Ports are displayed for Remote mode. Also, if
General configuration option Ext Leads is set to ExtLd, Chang is not displayed.