User guide

3-16 Encore Multi-port DSU/CSU User GuideÑJuly, 1997
3
Non DACS Non DACS automatically switches to ALTERNATE
timing and, if this is not available, to INTERNAL
timing. Select Non DACS if the
DSU/CSU looses
NETWORK timing.
Main/Alt Syn INT, EXT[n],
NET, and DATA
[n] (DTE)
DefaultÑNET/INT. Select the main clock source and
then the alternate clock source for the T1 network
transmitter. (Each source has the same options.) Type
y to conÞrm each action. The DSU/CSU
DSU/CSU
always attempts to use the Main clock source. If this
source is not available (due to a missing signal from
the source or a diagnostic test), it uses the Alternate
source.
NET Select NET if the network is the clock source. If it is
not, select INT (INTERNAL) at one T1 end, and NET
at the other.
Digital Link FDL
Protocol (ESF
only)
Enabled or
Disabled
DefaultÑEnabled. EnabledÑEnables the remote
DSU/CSU display. To provide communications to
the remote
DSU/CSU via the T1 line, the local
DSU/CSU sends Digital Link proprietary messages
to the
DSU/CSU through the T1 ESF Facility Data
Link. These messages do not interfere with AT&T
TR54016, which is automatically supported in ESF or
ANSI T1.403 (enabled in ANSI FDL Protocol).
DisabledÑThe proprietary messages are not sent,
resulting in the loss of the remote display.
Table 3-4 NET (Continued)
Parameter Setting Description