I-O Display Systems Basic I/O Product - Manual (Page 19)

Setup & Installation 2
2-2(Vol.1)
POWER WIRING:
Power connections are made at the 2 position terminal block located on the module board
marked +5V and GND No. 8 captive wire clamps accept 10-16 AWG wire or spade lugs.
+5V GND
Power wiring conventions:
+ of the power source to the +5V terminal
- of the power source to the terminal marked GND
Power requirements
Voltage: 5.0- 5.4Vdc
Current:
250 mA + 25mA per digital module or 250 + 200mA per analog
module.
Note that the current draw of some specialized digital
modules such as the IDC5S or the IDC5Z, can be
substantially larger than 25 mA. Consult the specific
module data sheet for this value when sizing power
supplies.
Practices: In general it is good practice to reserve the +5Vdc power supply
exclusively for the task of powering one or more BASIC I/O units. As
with any microprocessor based equipment, reasonably clean power is
required for reliable operation. Sharing power with other devices such
as field signal transducers and contact excitation should be avoided.