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TECHNICAL SPECIFICATIONS (AMT-75)
The specifications listed for the Modulator are just for the DVB-S2 option. The
modulator can also support all of the AMT70 options listed in the AMT70 technical
DESCRIPTION
MODULATOR
Data Rate
Data Rate Options
Symbol Rate
Data Interfaces
Local / Remote Monitor & Control Interfaces
Data Connector
Data Clock Source
DVB-S2 Modulation Type & FEC Rate
Modulation Roll-Off Factor
AMT-70/AMT-73/AMT-75 Installation and Operation
specification.
SPECIFICATION
64 Kbps to 140 Mbps
16kbps to 10Mbps, 20Mbps, 52Mbps and 140Mbps
128 KSymbol to 40 MSymbol
RS 530 / V35 (standard)
ASI (optional)
Single HSSI interface(standard)
Triple HSSI (optional)
Ethernet 10/100BaseT (optional)
G.703 (optional)
1 to 8 X E1/T1 (optional)
9 pin D-sub (F) for RS-232 Serial interface
9 pin /d-sub (F) for RS-485 Serial interface (Terminal mode and packet
protocol mode)
15 pin D-sub (F) for Alarm interface (switch-over contact)
RJ-45 10/100BaseT Ethernet
25 pin, D-sub (F), standard for RS530 Data interface
BNC (F) - 75 Ω for ASI and E3/T3 G.703 interfaces
50 pin SCSI-2 connector (F) for HSSI Data
RJ-45 for Ethernet option and for balanced bi-directional E1/T1 interface
with Octal E1/T1 card
Modulator will be defined as Data Communications Equipment (DCE)
Continuous Wave (CW)
QPSK:
64Kbps to 70Mbps
DVB-S2 SHORT and NORMAL FEC Block
1
2
SHORT Block 16kbit ¼,
/
,
/
3
1
2
NORMAL Block 64kbit ¼,
/
,
3
8PSK:
256kbps to 110Mbps
DVB-S2 SHORT and NORMAL FEC Block
3
2
3
SHORT Block 16kbit
/
,
/
,
5
3
3
2
3
NORMAL Block 64kbit
/
,
/
,
5
3
16APSK:
340kbps to 140Mbps
DVB-S2 SHORT and NORMAL FEC Block
2
3
SHORT Block 16kbit
/
,
/
,
3
4
2
3
NORMAL Block 64kbit
/
,
/
,
3
4
12% to 35% with 1% resolution
1
3
2
4
5
8
,
/
,
/
,
/
,
/
,
/
,
/
5
2
5
3
5
6
9
1
3
2
4
5
8
9
/
,
/
,
/
,
/
,
/
,
/
,
/
,
/
5
2
5
3
5
6
9
10
5
8
/
,
/
,
/
4
6
9
5
8
9
/
,
/
,
/
,
/
4
6
9
10
4
5
8
/
,
/
,
/
5
6
9
4
5
8
9
/
,
/
,
/
,
/
5
6
9
10
24
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