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5
C O N F I G U R A T I O N O F T H E S Y S T E M
5.1
Configuration of the 2 Mbit/s (E1) Interface
Nearly all parameters of the MAGIC ETI Decoder system can be configured
by the Windows PC software.
Only the 2-Mbit interface must be configured for balanced or unbalanced op-
eration. The systems will be delivered in the operation mode which is ordered.
FIG. 8 shows a picture of the 2-Mbit/s module. Unless used as a converter
(see below), it should be ensured that all jumpers are inserted in the same
row. In addition it is possible to configure the system for T1 (USA and Asia)
networks. All settings are for the 2-Mbit input, 2-Mbit output, clock input and
clock output.
To open the system please remove the four front screws and the screw on the
left side. Then you can remove the front. Press with both hands on the cover
and drag the cover in your direction.
Remark
The system can be also used as a converter from balanced to unbalanced
i
signal lines. For this purpose the jumpers can be set in different rows.
Warning
Dangerous voltages are present, when unit is opened !
If the jumper positions must be changed, please remove the power cable.
In doubt please leave the configuration to service personnel.
FIG. 6
POSITION OF THE JUMPERS TO CONFIGURE THE E1/T1 LINE INTER-
FACE
SYM
UNS
T1
2-MBit
Input
JUMPERS
SYM
UNS
T1
2-MBit
Clock
Clock
SEL
Output
Input
Output
PA G E 1 9
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