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2.2 Rear Panel Input/Output Signals
Figure 2.1 shows the input and output connectors on the rear panel.
1
5
2
3
4
6
7
8
9
AC
GND
J8
J2
EXT 10MHZ
IINPUT
RF INPUT
10MHZ REF
OUTPUT
INT
EXT
AUTO
S1
J101
J11
ALARM
J102 - RF OUTPUT
SMA (female) 7.25 to 7.75 GHz,
-30 dBm max output signal. See Table 2.2
for other table connector options
AC INPUT
100-240 ±10% VAC,
47-60 HZ
Uses 2 amp Slow Blo,
5mm fuse
S1 - 10MHZ SWITCH
3-position switch. INT selects internal 10MHz ref.
AUTO selects internal 10MHz ref, unless a
+3dBm ±3dB 10MHz signal is inserted on J2.
EXT selects external 10MHz ref from J2.
J2 - EXT 10MHZ INPUT
BNC (female) 50
Ω
/75
Ω
. Insert external
10MHz reference here (3 dBm ± 3 dB).
J101 - RF INPUT
SMA (female) 50
Ω
7.9.0 to 8.40 GHz,
-10 dBm max input signal.
See Table 2.2
for other table connector
options .
J11 - ALARM
DB9 (female) connector.
See Table 2.1.
J8 - 10MHZ REF OUTPUT
BNC (female) 50
Ω
/75
Ω
.
Outputs the currently selected
10MHz ref signal (3 dBm ±3 dB).
RF OUT
FIGURE 2.1 2116-84T78 Rear Panel I/O
ʼ
s
TABLE 2.1 J1
11
TABLE 2.1 J11 Pinouts (DB9)
Pin
Function
1
Not Used
2
Not Used
3
Not Used
4
Not Used
5
GND
6
Alarm Relay: Common
7
Alarm Relay: Normally Open
8
Not Used
9
Alarm Relay: Normally Closed
TABLE 2.2 C
Connector
2.2
Connector
Option
RF Input
RF Output
STD
SMA, 50
Ω
SMA, 50
Ω
NN
N-Type, 50
Ω
N-Type, 50
Ω
2.3 Front Panel Indicators
Figure 2.2 shows the front panel indicators.
DS2 - ALARM LED
Lights RED when PLL comes
out of lock.
DS1 - POWER LED A
Lights GREEN when DC voltage is
present from AC power supply.
DS3 - EXT 10MHZ LED
Lights YELLOW when external
10MHz reference is active.
POWER
EXT
10MHZ ALARM
FIGURE 2.2 2116-84T78 Front Panel Controls and Indicators
2116-84T78 Manual, Rev. 0
Page 6
12/09/19