User Manual

Demand Assignment
System Overview GSI 002
605-0000-450
Draft Issue 1.3dr Date 8/02/00
Page 13 of 16
large obstructions in proximity to and in line of sight from the ST to the Antenna. See
the ST installation and commissioning manual for deployment rules.
The Antenna unit contains a flat plate antenna and a Low Noise Amplifier (LNA). It
connects to the IF Drop cable using an F type connector. Power for the LNA is
provided via the drop cable.
4.3. Antenna Mounting Bracket
The antenna Mounting Bracket provides adjustment (in the azimuth plane) of the
Antenna in an arc over 150°, the optimum positioning being determined by measuring
the strength of the incoming signal, usually in the direction of the CT antenna.
4.4. IF Drop Cable
The drop cable connects the internal SIU to the Antenna via an environmentally
protected F-Type connector that is plugged into the backplate of the Antenna. The IF
Drop Cable is 50m or 100m with a 40mm minimum bend radius.
4.5. Subscriber Terminal Types
There is a range of STs available, each supporting different services and numbers of lines See
Table 1.
Service Interface Unit FunctionGeneric Subscriber
Terminal
Type Qty Construction
R Series
R1 RU-V1 1 Residential
Subscriber Unit
One line voice 64kbit/s PCM / 32 kbit/s
ADPCM
R2 RU-V2 1 Residential
Subscriber Unit
Two line voice 64kbit/s PCM / 32 kbit/s
ADPCM
S Series
S1 SU-V1 1 Sub-Unit One line voice 64kbit/s PCM / 32 kbit/s
ADPCM
♣S2
SU-V2 1 Sub-Unit Two line voice 64kbit/s PCM / 32 kbit/s
ADPCM
N2 MU-V2 1 Modular Unit Two line voice 64kbit/s PCM / 32 kbit/s
ADPCM
N Series
N4 MU-V4 1 Modular Unit Four line voice 32kbit/s ADPCM
B Series
B1 MU-I 1 Modular Unit ISDN (FA Mode)
L Series
L128 MU-D128 1 Modular Unit One line 128kbit/s data (FA Mode)
L64 MU-D64 1 Modular Unit One line 64kbit/s data (FA Mode)
L2x64 MU-D2x64 1 Modular Unit Two line 64k bit/s data (FA Mode)
M Series
M2 MU-V2 1 Modular Unit in
Modular Enclosure
Two line voice 64kbit/s PCM / 32kbit/s
ADPCM
M4 MU-V4 1 Modular Unit in
Modular Enclosure
Four line voice 64kbit/s PCM / 32 kbit/s
ADPCM
M4/64 MU-V2 2 Modular Unit in
Modular Enclosure
Four line voice 64kbit/s PCM / 32 kbit/s
ADPCM
M8 MU-V4 2 Modular Unit in
Modular Enclosure
Eight line voice 32kbit/s ADPCM