TELEDYNE API T703U - Figure 3-4: Rear Panel Layout; Table 3-2. Rear Panel Description

Teledyne API T703/T703U Calibrator Operation Manual Getting Started
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Figure 3-4: Rear Panel Layout
Table 3-2. Rear Panel Description
Component
Function
Fan
For cooling: pulls ambient air through chassis from side vents; exhausts through rear.
AC Power
Connector
Connector for three-prong cord to apply AC power to the instrument
CAUTION! The cord’s power specifications (specs) MUST comply with the
power specs on the calibrator’s rear panel Model number label.
EXHAUST
Exhaust gas from ozone generator and photometer (option)
CAUTION! Exhaust gas must be vented outside.
PHOTO ZERO IN
Inlet for photometer Zero Gas (option)
PHOTO ZERO OUT
Outlet for photometer Zero Gas (option)
PHOTO IN
Measurement gas input for O
3
photometer (option)
PHOTO OUT
Calibration gas outlet to O
3
photometer (option)
CAL GAS OUT
Two outlets for calibration gas.
VENT
Vent port for output manifold
DRY AIR IN
Inlet for dry air.
ZERO AIR IN
Inlet for external zero air source – MUST BE CAPPED WHEN NOT CONNECTED.
COM 2
Serial communications port for RS-232 or RS-485 (option).
RX TX
LEDs indicate receive (RX) and transmit (TX) activity on the when blinking.
RS-232
Serial communications port for RS-232 only.
DCE DTE
Switch to select either data terminal equipment or data communication equipment
during RS-232 communication. (Section 5.1.1)
CONTROL OUT
For outputs to devices such as Programmable Logic Controllers (PLCs).
STATUS
For outputs to devices such as Programmable Logic Controllers (PLCs).
ANALOG OUT
For voltage or current loop outputs to a strip chart recorder and/or a data logger.
CONTROL IN
For remotely activating the zero and span calibration modes.
ETHERNET
Connector for network or Internet remote communication, using Ethernet cable.
USB
Connector for direct connection (option) to a personal computer, using USB cable.
Label w/power specs
Identifies the instrument model number and lists voltage and frequency specifications
07223D DCN7107