LOCAL OPERATION CONTROLS AND CONNECTORS
3-9
Introduction
Rear-panel connectors
The rear-panel connectors are shown in Fig. 3-3 below.
BURST
GATE IN
C5736
FREQ STD
IN/OUT
TRIGGER
IN
I/AM OUT
Q/FM OUT
PULSE IN
AUX IN/OUT
RS232
50 - 60Hz
POWER SUPPLY
185 VA
FUSE RATING
T2AL250V
100 - 240 V
RF OUT
50
GPIB IEEE 488.2
!
O
I
LVDS IN/OUT
REVERSE POWER
50W MAX < 3GHz
25W MAX < 4GHz
2
3
45
67
8
9
12
10
14
13
11
15
1
ETHERNET
Fig. 3-3 Rear panel
1 TRIGGER IN
50 Ω BNC socket (TTL): accepts a sweep (frequency/level
or list mode) trigger input. Pull-up resistor.
2 BURST GATE IN
50 Ω BNC socket (TTL): a burst control signal triggers
analog ramp-up or ramp-down of RF level.
If generated internally by the ARB, the burst control signal is
output from this connector.
3 FREQ STD IN/OUT
BNC socket, 300 mV to 1.8 V RMS into 1 kΩ: for the input
of external standard frequencies of either 1 MHz or 10 MHz.
Can also supply a 2 V p-p 10 MHz internal standard output
from 50 Ω.
4 RS232 9-way connector for remote operation and downloading
software upgrades. For contact allocation see Chapter 2.
5 ETHERNET LAN connector for remote programming using VXI-11
protocol. Not fitted to some instruments.
6 IEEE 488.2 24-pin socket accepts the standard GPIB connector to allow
remote operation of the instrument.
7 Power supply switch Isolates the instrument from the AC line power supply.
8 Power supply receptacle 3-pin plug integral with fuse holder.
9 RF OUTPUT
Option 007 only. Replaces the front-panel 50 Ω N-type
socket.
10 Q/FM OUT
50 Ω BNC socket, 1 V RMS: outputs the Q signal from the
internal baseband source or the output of the FM source.
EXT Q/EXT FM
Option 007 only. Q input or external frequency modulation
input. BNC socket, selectable 50 Ω/100 kΩ.
11 I/AM OUT
50 Ω BNC socket, 1 V RMS: outputs the I signal from the
internal baseband source or the output of the AM source.
EXT I/EXT AM
Option 007 only. I input or external amplitude modulation
input. BNC socket, selectable 50 Ω/100 kΩ.
Q OUT
Option 009 only. Opposite polarity, equal magnitude to Q
signal on Q/FM OUT.