Nortel TDM Recorder, Installation Manual

Page: 110 / 128

Voice Card Configurations Standard 3.0
110 Nortel TDM Recorder
Modifying the protocol on a E1 card
Modify protocol in an E1 Card to determine characteristics and number of
channels to be recorded. The E1 card (primarily used in Europe) can contain
up to 30 channels (60 channels for the DP6409 model). See also on page 97
for more information on trunks and protocols.
To modify the protocol in a E1 voice card:
1 In the Recorder Manager with an E1 voice card selected choose
General Setup > Voice Cards > Card and under Trunk choose a
protocol according to the following:
2 Click Channels to view the number of channels available after the
update.If you have exceeded the number of licensed channels, you need
to obtain additional licenses.
Protocol Description
Channels
Available
ISDN/DASS2 Integrated Services Digital Network is a
signalling variant used with the T1 or E1 that
reserves a single data channel on each
multiplexed line for signaling information.
DASS 2 is a predecessor of ISDN used with
T1 lines.
30/60* (E1)
23/46* (T1)
CAS/RBS Channel Associated Signaling/Robbed Bit
Signaling is a signalling variant used with the
T1 or E1 that reserves a single data channel
on each multiplexed line for signaling
information. 30/60* (E1)
24/48* (T1)
Note: Channels available are for the DP3209 and DP6409 respectively
(channels are doubled if a DP6409 card is used as two trunks are available
with this card).