I/O Cable Preparation And Installation; Rs232 Terminal Connections - Cardinal 825 Installation And Technical Manual

I/O Cable Preparation and Installation

The 825 indicator may be connected to a printer to record weight and associated data or it may
be connected to a remote display or even to a computer for transmission of weight data. The
weight data may be transmitted on demand (pressing the PRINT key or on receipt of a
command from the computer).
1. If the rear panel of the indicator has been removed, proceed to step 2. Otherwise, remove
the 14 acorn nuts securing the rear panel to the main housing.
2. Referring to Figure No. 2, choose a gland connector for the I/O cable and loosen it.
3. Slip the cable through the gland connector and into the enclosure.
4. Referring to Figure No. 4, remove 3 inches (not 6 inches) of the outer insulation jacket
5. Next, remove 1/4 inch of insulation from each of the wires.
6. Referring to the corresponding I/O tables and figures in the next sections, connect each
wire to the terminal block.
7. To terminate a wire, loosen the screws in the terminal block and then insert the wire into
the terminal opening. Tighten the screw to secure the wire in place.
8. Repeat the procedure until all wires are in place.

RS232 Terminal Connections

Refer to the tables below and Figure No. 11 on the next page to connect each wire to the
terminal block.
RS232 COM1, COM2, and COM3
TERMINALS P22, P21 and P20
Terminal
1
2
RTS (Ready To Send)
3
CTS (Clear To Send)
4
5
RS232 COM4
TERMINALS P19
Terminal
1
2
3
5V/.5A (5 VCD @ .5A)
4
5
16
INSTALLATION, CONT.
Function
TXD (Transmit)
RXD (Receive)
GND (Ground)
Function
TXD (Transmit)
RXD (Receive)
GND (Ground)
GND (Ground)
8545-M838-O1 Rev D  825 Installation & Technical
IMPORTANT!
 COM1 is RS232 only (no jumper or shunt).
 COM2 requires J7 shunt installed on RS232.
 COM3 requires J8 shunt installed on RS232.
IMPORTANT!
 COM4 is RS232 only (no jumper or shunt).
Note that COM4 does not have handshaking.