2N PRI Gateways - User Manual - Manual (Page 67)

!! Preliminary version of user guide v1.8 !!
!! Preliminary version of user guide v1.8 !!
65
9.7.3.2
ISDN parameters
PRI ISDN connection settings.
ISDN
- ISDN PRI 1 port type - defines the type of the PRI 1 ISDN port on the PRIGW PRI ISDN board.
ISDN PRI is a point-to-point connection. The gateway must have an opposite port type than the
device it is connected to
*.
PRI 1 port is always set as internal – there is activated LCR function, PRI 2 port is always set as
external – all calls from PRI 2 port will be rerouted to PRI 1 port. PRI 2 port has ALWAYS opposite
mode than PRI 1 port !!
- Synchronization – selects the device to transmit the synchronization clock.
-
Master – the gateway sends the synchronization clock, the connected device must
be set to receive the synchronization clock.
-
Slave – the gateway receives the synchronization clock from the connected
device.
- TEI management – gateway identification address (0 by default, 62 max.)
- Channel number select – defines way of occupation of B-channels on PRI interface
- Upward > gateway will occupy channels from channel 1 to 32
- Downward > gateway will occupy channels from channel 32 to 1