Back Panel Connections - Metrolab PT2026 Manual De Instalación Y Seguridad

PT2026 Installation and Safety Manual

2-3 BACK PANEL CONNECTIONS

1 Power
2 Fuse
3 Power switch
4 Probe
5 Trigger signal
6 Reference clock
7 Ethernet
v 1.0 r 4.0 – 02/2017
See Section 2-2 for ratings and warnings
See Section 2-2 for ratings and warnings
The front- and back-panel switches have the same
functions:
 Power on: with power off, hold ~1 sec
 Power off: with power on, press momentarily
 Factory reset: with power on, hold until power-off
(~5 sec)
 Forced shutdown: when system is hung, hold
until power-off (~10 sec)
The same connector is used for multiplexers and
other PT2026 peripherals; proprietary pin-out.
BNC connector, TTL Level; trigger output or input:
 Trigger output: flags when field attains a given
value; B rising, falling or either; pulse or level
output; can drive 50Ω.
 Trigger input: determines when measurement is
taken; rising or falling edge; high impedance
input.
BNC connector:
 Internal reference output: 10 MHz ± 1 Hz, can
drive 50Ω.
 External reference input: 10 MHz ± 30 Hz, 50Ω
input. Allowable level +10 to +20 dBm, which
corresponds to a 50% duty cycle square wave
with peak-peak amplitude between +2.5 and +5
V.
RJ45
6
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