DUG 20 » History » Revision 5
Revision 4 (roh, 05/13/2020 07:58 PM) → Revision 5/16 (roh, 05/13/2020 08:50 PM)
h1. DUG 20
This is the second-generation GSM Digital Unit for RBS 6xxx. It combines the baseband processing and back-haul interface of up to 12 TRX, in 1..6 logical BTSs.
The DUG 20 is only compatible with the [[RUS]] and [[RRUS]] radio units, not with the older [[RUG]] units.
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h2. Technical data
* 48V DC supply power
* 70W maximal power consumption
* Size: 8U x 31mm x 250mm
* Weight: < 2kg
h2. Front Haul
The DUG 10 has 6 SFP slots for the interface towards the radio raido units, labelled RI A..F
{{thumbnail(DUG20_01_SFP_1_detail.jpg, size=400)}}
{{thumbnail(DUG20_01_SFP_2_detail.jpg, size=400)}}
h2. Back-Haul interface
The back-haul interface is Classic T1/E1/J1 (ISDN) based. The DUG has four T1/E1/J1 lines exposed as two RJ45 connectors ("ET A" and "ET B")
{{thumbnail(DUG20_01_ETB_ETA_detail.jpg, size=400)}}
h2. other details
h3. Flash
There is a CF slot on the left this device and it holds a 256mbyte CF card.
{{thumbnail(DUG20_01_CF-slot_detail.jpg, size=400)}}
h3. LEDs
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h3. ESB port
note that its a bit smaller than the sfp slots
{{thumbnail(DUG20_01_ESB_detail.jpg, size=400)}}
h3. LMT B, LMT A, EC, GPS
{{thumbnail(DUG20_01_LMT_GPS_detail.jpg, size=400)}}
h3. 48V DC in
{{thumbnail(DUG20_01_DC_in_detail.jpg, size=400)}}
h3. Connector on the Back
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h2. Overview Pictures
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{{thumbnail(DUG20_01_left_perspective.jpg, size=400)}}
{{thumbnail(DUG20_01_right_perspective.jpg, size=400)}}
{{thumbnail(DUG20_01_back_perspective.jpg, size=400)}}
{{thumbnail(DUG20_01_bottom_complete.jpg, size=400)}}
