Section 2
page 2.7
10/96
P/N 81905903860
INSTALLATION
2
Installation
RCP-GPIO
2.8 Input Connection
The RCP-GPIO Control Panel provides 32 opto-isolated inputs. Each
control panel input utilizes two 3-pin Weco input connectors (Figures 2-6
and 2-7). The two 3-pin input connectors allow the user to utilize internal
power and an internal 390 ohm pull-up resistor which can be connected to
the anode of the opto-isolator by connecting pins 1 and 2 of Input Connec-
tor One together. Input Connector Two provides the user with an open
collector connection on pin 2 to be utilized as a contact closure by user
supplied equipment. A GND connection is provided on pin 3 of Input
Connector Two for utilization by user supplied equipment. Alternatively,
an external current limit resistor can be installed between pins 2 and 3 on
Input Connector Two and user supplied power to pin 2 on Input Connector
One to activate the corresponding output. The input opto-diode is rated
for a maximum forward current of 60 milli-amps.
2KP
2372
9'&
*1'
Figure 2-6 Typical Input (View One)
