2.2 Rear Panel Input/Output Signals - Figure 2.2 shows the input and output connectors on the rear panel.
AC
GND
J18
10 MHZ REF
OUTPUT
J10
AND
MONITOR
CONTROL
J10 - MONITOR AND CONTROL
DB9 female connector.
See Table 2.1.
J3
10 MHZ
EXT REF
J1 - IF OUT A
140 MHz, -20 dBm output. 75
, BNC
(female) - See Table 2.2 for other options.
INPUT
J2 - RF IN
2000-2500 MHz, -70 to -20 dBm
input. 50
, BNC (female) - See
Table 2.2 for other options.
J3 - 10 MHz EXT REF INPUT (option E)
10 MHz external reference input, 0 ± 3 dBm,
75
BNC female connector.
J18 - 10 MHz REF OUTPUT (option E)
10 MHz reference output, 0 ± 3 dBm.
75
BNC female connector.
AC - POWER IN
AC input for switching power supply.
100-240 ±10% VAC, 47-63 Hz.
J1
IF OUT A
J2
RF IN
5
1
2
3
4
9
6
7
8
FIGURE 2.2 2016-26 Downconverter Rear Panel Inputs/Outputs
Table 2.1 J10 Pinouts (RS-485/RS-422/RS-232C)*
Table 2.1 J10 Pinouts (RS-485/RS-422/RS-232C)*
Pin
Description
1
Rx-
2
Rx+ (RS-232C)
3
Tx+ (RS-232C)
4
Tx-
5
Ground
6
Alarm Relay - Common
7
Alarm Relay - Normally Open
8
Output Level Detector, 0 to +5 VDC (option W1 ONLY)
9
Alarm Relay - Normally Closed
*Interface: DB-9 Female; Protocol: RS-485, RS-422, or RS-232C (selectable), 9600 baud rate,
no parity, 8 data bits, 1 start bit, 1 stop bit
TABLE 2.2 IIF/RF Connector Options
TABLE 2.2 I
F/RF Connector Optionns
TABLE 2.2 IF/RF Connector Optio
ns
Option
IF
RF
STD
BNC, 50
BNC, 50
B
BNC, 75
BNC, 75
D
BNC, 50
BNC, 50
N
BNC, 75
Type N, 50
M
BNC, 50
Type N, 50
SS
SMA, 50
SMA, 50
Option W1 Level Detector - Provides 0 to +5 VDC level indication for -60 to -30 dBm 140 MHz output.
The DC voltage comes out on pin 8 of the DB9 connector, J10, with pin 5 being ground. The impedance of
the 0 to +5 VDC level indication signal is 1k
. The relation between the change in output level and the
change in DC voltage is linear.
2016-26 Manual, Rev. A
Page 9
2/2/09
