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Primary to Basic Rate ISDN Multiplexer
SALES: 0118 965 5100
Protocol
This option selects the protocol used on all ISDN connections.
The options are ETSI EuroISDN and National ISDN.
Routing Mode
(ETSI protocol only)
This option selects the routing mode used to route calls.
The options are Number and Channel.
If it is set to number outgoing calls are routed to the first free b channel on PRI 1 and
incoming calls are routed by Called Party Number.
If it is set to channel calls are routed by b channel according to the routing table (see Routing
Setup).
NB: in National ISDN mode outgoing calls are routed to the first free b channel on PRI 1 and
incoming calls are routed by Called Party Number.
Datalink Set-up
This option brings up a menu, which allows the datalink mode of individual BRI's to be set
up.
If it is set to point-to-point, only one TA can be fitted on each BRI. The TA should have a
fixed TEI of 0.
If it is set to point to multipoint 8 TA's can be fitted on each BRI.
( with National ISDN protocol this is effectively limited to 2 since only 2 SPID's per BRI are
supported ).
For most terminal equipment, point to multipoint should be used.
For some PBX's point-to-point should be used.
Channel Set-up
This option brings up menus, which allow the number of channels to be used for calls on each
interface to be set up. Use the cursor keys and <ENTER> to select the interface type and then
use the cursor keys to select the interface to be set up. Use <SPACE> to change the number
of channels required. <BACKSPACE> can be used to make the number of channels 0.