Lnb Power And Control; 10/100Baset Ip Input (Tt1260/Hwo/Ip - TANDBERG TT1260 Reference Manual

Technical Specification
Table B.28: QPSK Bitrate R188 Limits (Mbit/s)
FEC
1/2
2/3
3/4
5/6
7/8

LNB Power and Control

The IRD provides LNB power and control signals through the active RF input connector. LNB
power and controls are enabled through the Satellite Input Menu, see Annex C, Menus.
The IRD supports voltage controlled LNBs only. The LNB power circuit provides automatic
protection against short circuits in the LNB or its cable. When the short circuit has been
removed recovery is automatic. Switchable boost of the LNB voltage to allow for losses in long
cables and control of 22 kHz tone insertion are provided. The LNB power characteristics are
as detailed in the following table.
Table B.29: LNB Power and Control
Parameter
Voltage
Current
LNB control
Tone amplitude
Boost voltage
Table B.30: ASI Copper
Input
Safety status
Connector type
Input impedance
Data rate range
Error decoding
B.5.10

10/100BaseT IP Input (TT1260/HWO/IP)

This allows transport streams to be piped to the TT1260 over an Ethernet network.
Table B.31: 10/100BaseT IP Input Specifications
Input
Safety status
17
Receive Polarisation: As specified in ETS 300 784: Satellite Earth Station and Systems (SES); Television Receive-only (TVRO)
earth stations operating in the 11/12 GHz frequency bands.
Page B-20
R188min
1.000000
1.228758
1.382353
1.535948
1.612745
Specification
Voltage V (nominal)
13
18
350 mA maximum
22 ± 2 kHz tone
0.6 ±0.2 Vp-p
1 V typical
Specification
SELV
BNC, Female
75 Ω
0.350 - 160 Mbit/s
None
Specification
SELV
Reference Guide: TT1260 Contribution Receiver
R188max
41.470588
55.294118
62.205882
69.117647
72.573529
Receiver Polarisation 17
Vertical/circular right
Horizontal/circular left
ST.RE.E10100.3