Cisco Prisma II 1 GHz 1550 nm Transmitters Scheda Tecnica
Prisma II Ancillary Modules
3
Head End Driver Amplifiers, continued
Specifications
RF
Units
Forward
Reverse
Notes
RF Bandwidth
MHz
46 to 1002
5 to 200
Frequency Response
Flatness
Initial Tilt
Flatness
Initial Tilt
dB
dB
dB
± 0.50 (typical)
± 0.75
± 0.50
1
Return Loss - Input
1
46 – 870 MHz
871 – 1002 MHz
871 – 1002 MHz
dB 18
16
18 ( 5-200 MHz)
Return Loss – Output
1
46 – 870 MHz
871 – 1002 MHz
871 – 1002 MHz
dB 16
18
18 ( 5-200 MHz)
Noise Figure
dB
8 max. (7 typical)
7 max. (6.2 typical)
Module Gain (minimum)
dB
23.5 (typical)
21
1
Variable Attenuator
dB
0 - 10 in 0.5 dB steps
0 - 3 in 0.5 dB steps
Variable Equalizer
dB
0 - 9 in 1.5 dB steps
0.5 - 5.5 in 0.5 dB steps
Distortions (max)
2
Composite Triple Beat (CTB)
dB
-72
-79
Composite Second Order (CSO)
dB
-72
-72
Cross Modulation
dB
-72
-75
RF Test Points
dB
-20
± 1.0
-20
± 1.0
Electrical
Power Consumption
W DC
15 max.
15 max.
Environmental
Temperature Range
Full Specs and Operational
Full Specs and Operational
°C
°F
-40 to +65
-40 to +149
-40 to +65
-40 to +149
Humidity Range
%
0 to 95
0 to 95
3
Mechanical
Physical Dimensions
Depth
Depth
in.
cm
9.8
24.9
9.8
24.9
Width
in.
cm
1.0
2.5
2.5
1.0
2.5
2.5
Height
in.
cm
7.6
19.3
7.6
19.3
Weight
lb
kg
3.0
1.4
1.4
3.0
1.4
1.4
Module Width
slots
1
1
Notes:
1.
With attenuator and equalizer set to 0.0 dB. Flatness
± 0.75 over full temperature range.
2.
FHEDA distortions measured with 112 unmodulated (CW) NTSC analog channels at 38 dBmV flat output (46 – 1002 MHz). Distortions
may degrade 0.5 dB at high temperature. RHEDA distortions measured with 38 dBmV/channel output level for 26 unmodulated (CW)
NTSC channels between 5 MHz and 200 MHz.
may degrade 0.5 dB at high temperature. RHEDA distortions measured with 38 dBmV/channel output level for 26 unmodulated (CW)
NTSC channels between 5 MHz and 200 MHz.
3.
Recommended for use only in non-condensing environments.
Unless otherwise noted, specifications reflect typical performance and are referenced to 68
°F (20°C). Specifications are based
upon measurements made in accordance with SCTE/ANSI standards (where applicable), using standard frequency assignments.