AT&T 3551 Switch User Manual


 
COMSPHERE 3550 Series Data Service Units
C-12 February 1995 3550-A2-GB20-10
Table C-10
(2 of 3)
TDM/Flex Error Messages
Message ActionCondition
Invalid timing
A TDM/Flex port (Prt1 or Prt2) was
previously selected as the source of
external timing when the TDM/Flex was
enabled. Now, the TDM/Flex is enabled.
Set TxClkSource to any of the valid timing
sources (external timing is set to Ext for
the DSU (or ExtBU) and/or the DBM).
Ext was previously selected as the source
of external timing when the TDM/Flex was
disabled, and the TDM/Flex is now
enabled.
Set TxClkSource to any of the valid timing
sources (external timing is set to Prt1 or
Prt2).
No 1.2 @ 56K,64K A TDM/Flex port is configured for a
synchronous rate of 1200 bps and the
DSU rate is set to 56 kbps.
Correct the problem in one of two ways:
1. Increase the speed of the port to
at
least
2400 bps via the DSU path in the
PrtSp configuration submenu.
2. Set the DSU rate to a value
less than
56 kbps.
OnePrt no undspd Only one TDM/Flex port is active, and an
attempt is made to configure it for
underspeed; no underspeed port is
required.
Disable the port’s underspeed
configuration option via the appropriate
path (DSU or DBM) in the PrtSp
submenu.
Port Off Undersp A TDM/Flex’s port is disabled and is also
set to run underspeed; port that is
disabled
cannot
run underspeed.
Correct the problem in one of two ways:
1. Set the port speed to
any value but
Disab in the PrtSp configuration
submenu.
2. Select another synchronous port to run
underspeed via the appropriate path
(DSU, DBM, or ExtBU) in the PrtSp
submenu.
RTS/AnStr Conflc A port’s AntiStreaming and RTS Control
settings are
not
compatible.
For AntiStreaming to be in effect, RTS
Control
must
be set to DTE.
Set RTS Control to DTE via the
appropriate path (Prt1 or Prt2) in the MUX
submenu.
RTS/TxCrr Conflc A port’s TxCarrSel (Transmitter Carrier
Select) and RTS Cntrl (RTS Control)
settings are
not
compatible.
When a port’s TxCarrSel is set to Cntrl,
RTS Cntrl
must
be set to DTE. When a
port’s TxCarrSel is set to Const, RTS
Cntrl
must
be set to FrcOn.
Set Transmitter Carrier Select (TxCarrSel)
and RTS Control (RTS Cntrl) to
compatible settings via the appropriate
path (Prt1 or Prt2) in the MUX submenu.