Gamry Instruments Interface 1000 - Appendix C: I;O Connectors; User I;O Connector

Appendix C : I/O Connectors--User I/O Connector
Appendix C - 1
Appendix C : I/O Connectors
The Interface 1000 includes several I/O connectors other than the Cell Connector described in Appendix B.
The details of these connectors are described here.
User I/O Connector
This connector contains a number of signals used to interface the Interface 1000 to external apparatus. It is the
miniature 15-pin female D-shaped connector on the rear panel of the Interface 1000.
The pin out of this connector is shown in Table C-1.
Table C-1
User I/O Connector
Pin
Name
Use
1
Analog Output High
The auxiliary output signal (DAC output)
2
Analog Output Low
The auxiliary out
put ground connection (ground)
6
Ground
Digital ground
7
Digital Out 0
A
CMOS
-
compatible digital output
;
connecting device input
current must be below 10 µA
8
Digital Out 1
A CMOS
-
compatible digital output
;
connecting device input
current must be below 10 µA
9
Digital Out 2
A CMOS
-
compatible digital output
;
connecting device input
current must be below 10 µA
10
Digital Out 3
A CMOS
-
compatible digital output
;
connecting device input
current must be below 10 µA
11
Digital In 0
A
CMOS
-
compatible digital
input
;
2.2 k
Ω
input impedance
12
Digital In 1
A CMOS
-
compatible digital input
;
2.2 k
Ω
input impedance
13
Digital In 2
A CMOS
-
compatible digital input
;
2.2 k
Ω
input impedance
14
Digital In 3
A CMOS
-
compatible digital input;
2.2 k
Ω
input impedance
15
+5
V
Power
;
50 mA maximum current
Caution: Floating operation of the Interface 1000 can be compromised by improper
cables to the User I/O connector. We do not recommend use of standard 15-pin shielded cables with this
connector. Custom cables with the shield connected to pin 6 of the D-connector are preferred.
Caution: The ground pin (pin 6) on this connector is earth ground and the D-connector
shell is the Interface 1000 Floating Ground. Improper User I/O connections can damage an Interface 1000
that is connected to a high-energy cell containing earth-grounded terminals.