Digium, Inc.
Page 25
Chapter 2: Card Installation
T1/E1 Selection
The TE430 Series cards can be configured for either T1 or E1 mode. The
T1/E1 mode may be specified in the drivers using either the
default_linemode=t1
or
default_linemode=e1
module parameter when
the drivers are loaded. This will set the mode for all spans on the card.
T1 Mode (Recommended Method) - Include the following in
/etc/modprobe.d/dahdi.conf:
options wcte43x default_linemode=t1
T1 Mode (Alternate Method):
# modprobe wcte43x default_linemode=t1
E1 Mode (Recommended Method) - Include the following in
/etc/modprobe.d/dahdi.conf:
options wcte43x default_linemode=e1
E1 Mode (Alternate Method):
# modprobe wcte43x default_linemode=e1
Connecting Timing Cables
The timing port allows up to four TE430 Series cards to share the same
sync (timing) source from the T1 line provider, or provide a consistent
sync source across multiple cards. This is a useful feature for fax modes
and some voice applications to prevent corruption due to timing slips on
the second, third or fourth TE430 Series cards.
