MODEL 2117-8485 Up/Downconverter
1.0 General
The 2117-8485 Up/Downconverter converts 1.80 - 1.90 GHz to 8.40 - 8.50 GHz and 8.40-8.50 GHz to 1.50 -
1.60 GHz, with non-inverting spectrums. Front panel LEDs provide indication of DC Power, External 10 MHz,
and PLL Alarm. The gain is +20 dB for the upconverter and -20 dB for the downconverter. Connectors are
Type N female for the RF output and input, BNC female for the L-band input and output and external reference
input and reference output. A three-way switch controls which 10 MHz reference is being used. In the AUTO
position, the internal reference is used unless a +3 dBm ± 3 dB, 10MHz reference signal is connected to the
external reference input. The 2117 is powered by a 100-240 ± 10% VAC power supply, and in a 1 3/4” X 19” X
19” rack mount chassis.
MODEL 2117
C
ROSS
T
ECHNOLOGIES INC.
EXT
10MHZ
POWER
ALARM
UP/DOWNCONVERTER
FRONT PANEL
AC
GND
J8
J2
EXT REF
IN
REF
OUT
INT
EXT
AUTO
S1
J112
J11
MONITOR
AND
CONTROL
1
5 2
3
4
6
7
8
9
J111
RF2 IN
RF2 OUT
J102
J101
RF1 OUT
RF1 IN
DOWNCON
UPCONV
REAR PANEL
FIGURE 1.1 Model 2117-8485 Front and Rear Panels
2117-8485
Up/Downconverter
Block Diagram
10 MH
z
To PLLs
EXT 10 M
10 M
MON
1.80 to 1.90
GHz IN
RF2 In
8.40 to 8.50 GHz BP
1.90 GHz LP
8.40 to 8.50
GHz OUT
RF2 Out
6.60 GHz
8.40 to 8.50
GHz IN
RF1 In
1.50 to 1.60
GHz OUT
RF1 Out
8.40 to 8.50 GHz BP
6.90 GHz
1.60 GHz LP
Upconverter
Downconverter
ATT.
ATT.
FIGURE 1.2 Model 2117-8485 Up/Downconverter Block Diagram
2117-8485 Manual
Page 3
11/14/19
