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Model GFC7000E Instruction Manual Operating Instructions
04584 Rev A1 117
There are two methods to activate control inputs. The internal +5V available from the “+” pin is
the most convenient method (Figure 6.11). However, to ensure that these inputs are truly
isolated, a separate, external 5 VDC power supply should be used (Figure 6.11).
CONTROL IN
A B C D E F U +
S
P
A
N
Z
E
R
O
CONTROL IN
A B C D
E F U +
-
+
5 VDC Power
Supply
S
P
A
N
Z
E
R
O
Local Power Connections
External Power Connections
Figure 6-11: Control Inputs
6.13.2. Remote Operation Using the External Serial I/O
6.13.2.1. Terminal Operating Modes
The Model GFC7000E can be remotely configured, calibrated or queried for stored data through
the serial ports. As terminals and computers use different communication schemes, the analyzer
supports two communicate modes specifically designed to interface with these two types of
devices.
• Computer mode is used when the analyzer is connected to a computer with a dedicated
interface program such as APICOM. More information regarding APICOM can be found in
later in this section or on the Teledyne Instruments website at http://www.teledyne-
api.com/software/apicom/.
• Interactive mode is used with a terminal emulation programs such as HyperTerminal or a
“dumb” computer terminal. The commands that are used to operate the analyzer in this
mode are listed in Table 6-26.