Specifications

Watson TDM
Operating Manual
Watson-TDM-Manual-W.doc
Version 2.0-01
8-10
Revision: 2008-02-07
8.2.5 E1 Configuration
AISDET ON | OFF
Set AIS detection (see 3.2.2):
ON Reception of AIS on the E1 user interface generates an AIS alarm
OFF AIS on the E1 user interface is ignored
AISGEN ON | OFF | T
Set AIS generation (see 3.2.3):
ON AIS is generated on the E1 user interface if AIS is detected on the remote
user interface or if the DSL link looses synchronization
OFF AIS is never generated on the E1 user interface. The E1 user interface is
switched off if AIS is detected on the remote user interface or if the DSL
link looses synchronization
T Transparent: if AIS is signaled from the remote E1 interface (reception of
AIS-R) then AIS is sent on the local interface. The E1 interface is
switched off if the DSL link looses synchronization.
CLK2M Clockmode
Select source of 2 MBit/s clock:
EXT external clock source
INT internal clock source
E1 clock from E1 port
Note:
The CLK2M command can only be applied to the first DSL system and the
command must be confirmed by entering it twice. It will then affect all other sys-
tems configured with LTUMODE on the plug-in, see 8.2.2.
CRC4 ON | OFF
Set CRC4 mode on / off.
EBIT ON | OFF
Set automatic E-Bit insertion on / off.
G704 ON | OFF
Set framed mode / transparent mode.
8.2.6 PRA Configuration
CRC4 option
Set CRC4 processing option (Subscriber access option):
CRC4 1 digital link without CRC4 processing
CRC4 2 digital link with CRC4 processing
CRC4 4 digital link with CRC4 monitoring
This configuration only selects the subscriber access option of the whole digital
section (NT1 and LT) if PRA Mode NT1 & LT is selected. If NT1 and LT functions
run on different modems, the CRC4 settings of both modems determine the ac-
cess option (see 3.2).
CRC4SA6 ON | OFF
Set generation of CRC4 error notifications to the ET on / off (applies only to NT1).