Topex MobiLink ISDN 2 GSM, Руководство пользователя

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TOPEX MobiLink ISDN2GSM User`s Manual
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Outgoing from PABX
The local subscriber calls the number of the local extension on
position where the MobiLink is connected. MobiLink answers, takes
over the numbering, then sends out the call into the adequate GSM
network. The number of the mobile subscriber must be dialed in
DTMF mode.
Incoming to PABX from the GSM network
As shown earlier, the call identity is checked with the CLIP-GSM
table and the call is sent thru the MobiLink’s TE interface to the
PABX. If the call identity is missing or it can’t be found in the
CLIP-GSM table, the call will be routed according to the settings of
the GSM module (“DISA” or “OPERATOR”).
5.2.5 Using several MobiLink ISDN 2 GSM
units
There are situations when you need to connect more than one
MobiLink unit to a PABX: when you must use more than two mobile
network directions or there is a lot of traffic towards the mobile
network.
Figure 5-5 Cascading several MobiLink units
To ensure synchronous operation of the MobiLink units, clock
synchronization is taken from the Public ISDN and goes to the TE
connector of the first MobiLink.
Please check the figure above to see the connection mode.
REMEMBER! When you use more than one ISDN terminals on the
same ISDN line (4 wire bus), you must end the ISDN line with
terminal resistors.