Topex MobiLink ISDN2GSM User Manual page 26

TOPEX MobiLink ISDN2GSM
TE connector – used for connecting the MobiLink TE interface.
The TE interface of the MobiLink ISDN 2 GSM unit is used for
connection to NT interfaces of the ISDN private branch exchange
or of the ISDN public telephony network. TE interfaces are provided
with embedded termination resistors. These resistors may be
enabled by means of corresponding jumpers, the pair JAT1 and
JAT2.
See table below for pinout of TE interface
Pin Signal
1 not connected
2 not connected
3 Tx
4 Rx
5 Rx
6 Tx
7 not connected
8 not connected
NT connector – used for connecting the MobiLink NT interface.
The NT ISDN interface of MobiLink is to be used for connection to
TE interfaces of the ISDN PBX or to ISDN terminals.
For pinout of NT interface of MobiLink see table below:
Pin Signal
1 not connected
2 not connected
3 Rx
4 Tx
5 Tx
6 Rx
7 not connected
8 not connected
SY connector
The Synchronization connector is internally paralleled to the TE
interface of MobiLink.
This is used when connecting several MobiLink ISDN 2 GSM units
together, to ensure synchronous operation of all devices.
User`s Manual
26