REAR PANEL CONTROLS
Note: some connectors may be in different positions than shown above, depending on
the exact combination of options ordered.
1. AC POWER INPUT
. An IEC-320 C14 three-pronged recessed male socket is
provided on the back panel for AC power connection to the instrument. One end of
the detachable power cord that is supplied with the instrument plugs into this socket.
2. AC FUSE DRAWER
. The two fuses that protect the AC input are located in this
drawer. Please see the “FUSES” section of this manual for more information.
3. DC FUSES
. These two fuses protect the internal DC power supplies. Please see the
“FUSES” sections of this manual for more information.
4. GATE
. This TTL-level (0 and +5V) logic input can be used to gate the triggering of
the instrument. This input can be either active high or active low, depending on the
front panel settings or programming commands. (The instrument triggers normally
when this input is unconnected). When set to active high mode, this input is pulled-
down to ground by a 1 kΩ resistor. When set to active low mode, this input is pulled-
up to +5V by a 1 kΩ resistor.
5. TRIG
. This TTL-level (0 and +5V) logic input can be used to trigger the instrument, if
the instrument is set to triggering externally. The instrument triggers on the rising
edge of this input. The input impedance of this input is 1 kΩ. (Depending on the
length of cable attached to this input, and the source driving it, it may be desirable to
add a coaxial 50 Ohm terminator to this input to provide a proper transmission line
termination. The Pasternack (www.pasternack.com) PE6008-50 BNC feed-thru 50
Ohm terminator is suggested for this purpose.)
8
17
6
3
5
1
2
7
GATE
RS-232
GPIB
TRIG
4
Summary of Contents for AVR-2B-B
Page 31: ...WIRING DIAGRAMS WIRING OF AC POWER...
Page 32: ...WIRING OF DC POWER...
Page 33: ...PCB 158R7 LOW VOLTAGE POWER SUPPLY...
Page 34: ...PCB 197K HIGH VOLTAGE POWER SUPPLY...
Page 38: ...PCB 104G KEYPAD DISPLAY BOARD...
Page 39: ...MAIN WIRING...
Page 40: ...PERFORMANCE CHECK SHEET 40...