GSS HDMT 1290, Assembly Instructions Manual, Page: 5 / 32

- 5 - HDMT 1290
Output level: ............................................................................. 96 dBμV
Output impedance: ......................................................................... 75
Ω
Connections
HF inputs: ...........................................................................2 IEC sockets
HF lopp-through outputs: ......................................................2 IEC sockets
HF output: ........................................................................... 1 IEC socket
Connection strip (10-pin): ...................for supply voltages and control circuits
RS-232 socket: ..................................... serial interface for software update
2.4 Description
The cassette converts two incoming COFDM-modulated signals into two out-
going COFDM-modulated signals with free selectable frequency. Individual
stations can be deleted. The cassette has two DVB-T inputs and one HF output.
General
The cassette is equipped with two channel strips (“ A ” and “ B ”). The channel
strips consist of the DVB-T tuners, the digital signal preparation units and the
output converter. The channel strips are indicated in the head-end station dis-
play with “ Bx …A ” and “ Bx …B ”. The control of the cassette takes place via
the control unit of the head-end station.
Two LEDs provide an indication of the input signal quality based on their col-
our and indicate if the respective channel strip is switched on (LED illuminates)
or off. The integrated TPS module (Transport Stream Processing) processes the
data of the transport streams.
The COFDM modulated HF output signals are sent through the HF output of the
cassette to the output collector. The common output level of the channel strips
can be set at the output collector.
When the head-end station is switched on, the two-line LC display shows the
software version of the control unit. To operate this cassette the software ver-
sion of the control unit must be “ V 41 ” or higher. You can find the current op-
erating software for the control unit and the cassette, the software “ BE-Flash ”
and the current assembly instructions on the website “
www.gss.de
”.
The cassette is designed for use in the following head-end stations:
STC 1200, STC 316, STR 19-8 and PST 19-1.