the detail of the dreambox dm500c
DM500c for Cable TV
Main features are a 250 MHz PowerPC (350 Mips).
Linux OP, the Dreambox DM500 supports the Standard Linux API (DirectFB, Linux-FB, LIRC, etc. )
The DM500 is the smallest digital Linux SetTopBox.
10/100MBit compatible? Ethernet Interface.
DSL communication port.
250 MHz IBM PowerPC Processo(350Mips)
Linux Operating System
1xSmartcard-Reader
MPEG2 Hardware decoding
Common available NIMs(DVB-S. DVB-C, DVB-T)
V. 24/RS232 Interface
Video Cinch out
Audio Cinch out
100Mbit full duplex Ethernet Interface
Up to 32 MByte of RAM
Unlimited channel lists for TV/Radio
Channel_change time <1 second
Full automatic service scan
Support directly bouquet-lists(indirect unlimited)
Support EPG(electronic program guide)
Support multiple LNB-Switching control(support DiSEqC)
Fully adaptable OSD in many languages(skin-support)
SPDI/F Interface for digital bit stream out(AC-3)
Scart-interface(full controlled by software)
DBS-Tuner:
Input Symbol rate 2 to 45 Mbaud/s, SCPC / MCPC
FEC Viterbi and Reed-Solomon
Viterbirate 1/2, 2/3, 3/4, 5/6, 7/8, automatic assimilation
Roll-off Factor 35 %
Demultiplexing according ISO 13818-1
Video decoder:
Video Compression MPEG-2 and MPEG-1 compatible
Video Standard PAL G/ 25 Hz
Video Formats 4: 3 / 16: 9
Footage 16: 9, automatic assimilation for 16: 9 TV-Device (over Scart)
Letterbox precolating for 4: 3 TV-Device
Audio decoder:
Audiokompression MPEG-1 & MPEG-2 Layer I and II
Audio Mode Dual (main/sub), Stereo
Frequency: 32 KHz, 44.1 KHz, 48 KHz, 16 KHz, 22.05 KHz, 24 KHz
Output analog:
Output Level L/R 0, 5 Vss o-n 600 Ohm
THD > 60 dB (1 KHz)
Crosstalk < -65 dB
Output digital:
Output Level 0, 5 Vss o-n 75 Ohm
Sampled Data Filtering 32 KHz, 44.1 KHz, 48 KHz
S/PDIF-Output optical (AC3)
Video parameter:
Input Level FBAS 1 Vss +/- 0.3 dB o-n 75 Ohm
Teletext filter in conformity with ETS 300 472 Standard
TV-Scart:
Output: FBAS, RGB, S-VHS over OSD selectable
Serielle Interface RS 232:
Typ RS232 bidirectional
Bitrate 115, 2 kBit/s max.
Plug Connector SUB-D-9
Function Update of Firmware and Preprogramming
Ethernet:
100 MBit compatible, bi-direktional interface
Function Update of Firmware and Preprogramming
Physical specification:
Ambient Temperature +15&deg; C to +35&deg; C
Humidity < 80%