2.2
Rear Panel Input/Output Signals and Control -
Figure 2.2 shows the input and output connectors on the rear panel.
RF OUT
J4
J5
J3
10 MHZ
RF IN
EXT REF
J3 - 10 MHz EXT REF INPUT (Option -E)
10 MHz external reference input, +3 dBm ± 3 dBm, 75
ohms, BNC female connector.
J5 - RF OUT
3.3 GHz, +/- 0.3 GHz,
-20 to -0 dBm out,
see Table 2.2.
J4 - RF IN
0.72 GHz +/- 0.3 GHz
input, -40 to -20 dBm in,
see Table 2.2.
UPCONVERTER
INPUT
AC
GND
J18
J2
RF IN
10 MHZ REF
OUTPUT
AC1 - POWER IN
AC input for switching
power supply.
100-240 ±10% VAC, 47-63 Hz.
J2 - RF IN
3.8 GHz +/- 0.3 GHz input,
-40 to -20 dBm, see Table
2.2.
J1 - RF OUT
0.72 +/- 0.3 GHz
output,
see Table 2.2.
J10
AND
MONITOR
CONTROL
J10 - MONITOR AND CONTROL
DB9 female connector. see Table
2.1.
DOWNCONVERTER
J1
RF OUT
J18 - 10 MHz REF OUTPUT
10 MHz reference output. 75
Ω
BNC
female connector.
J20
J20 - ETHERNET
CONNECTION
RJ45 Ethernet Connector
1
5
2
3
4
6
7
8
9
Figure 2.1 Model 3117-3338#-720 Rear Panel I/O’s
TABLE 2.1 J10 Pinouts (RS-232C/422/485*)
TABLE 2.1 J10 Pinouts (RS-232C/422/485*)
Pin
Function
1
Rx-
2
Rx+ (RS-232C)
3
Tx+ (RS-232C)
4
Tx-
5
GND
6
Alarm Relay: Common
7
Alarm Relay: Normally Open
8
Not Used
9
Alarm Relay: Normally Closed
*Remote Serial Interface
Interface: DB-9 Male
Protocol: RS-232C (RS-232C/422/485), 9600 baud rate, no parity, 8 data bits,
1 start bit, 1 stop bit.
3117-3338#-720 Manual, Rev. 0
Page 9
03/23/2022