
JO-PC1 Base Controller Mounting and Wiring Guide
Updated: January 16, 2012
Part Number JO-PC1 rev 1
Wiring Details
Grounding
10
Each accessory module has a DIN-mount base, and typically provides two (2) 20-pin connectors that allow you
to “chain” multiple accessories (see
lists currently available accessory modules.
Wiring Details
See
on page 7 to locate connectors and other components on the JO-PC1 controller.
Note
If biasing is needed for the controller's RS-485 base port, controller disassembly and reassembly is
needed. See the
Make connections to the controller in the following order.
1.
Install any option cards (LON, GPRS, etc.) in option slots 1 and 2. See
for a general procedure. For complete details, refer to the specific installation document that shipped with
the option card.
2.
Connect supplied earth grounding wires (with spade connector) from the earth ground lug on the JO-PC1
and any accessory modules (if used) to a nearby earth grounding point. See
3.
Prepare power wiring (leave the unit powered off). See
for details.
4.
Connect communications cables. See
page 11 for ports available on the
JO-PC1 base unit. For ports on any installed option board (LON, GPRS, modem) see the specific
mounting and wiring guide for any additional details.
5.
If IO accessory modules are installed, connect the I/O wiring. Refer to the appropriate mounting and
wiring guide for complete details.
6.
Connect the backup battery to the JO-PC1 battery connector, and apply power to the unit. See
Grounding
An earth ground spade lug (0.187") is provided on the base of the JO-PC1 and JO-34 I/O module for connection
to earth ground. For maximum protection from electrostatic discharge or other forms of EMI, connect the
supplied earth grounding wire to this lug and a nearby earth ground (see
on page 11). Keep this wire
as short as possible.
Table 2
JO-PC1 accessory modules.
Model
Description
Notes
JO-34
DIN-mountable, combined 34 points
I/O with 24V isolated power module,
used to provide I/O points as well as
power JO-PC1 from a dedicated,
external, Class-2, 24Vac transformer
or
a 24Vdc power supply.
Only one JO-34 per JO-PC1. Provides the following I/O points:
• 16 - Universal Inputs (UIs).
• 10 - Digital Outputs (DOs), SPST-relay type.
• 8 - Analog Outputs, 0–10Vdc type.
Up to 2 additional JO-16 modules can be used.
Wiring is covered in a
separate
document, see the
JO-34 Installation and Configuration Guide
.
JO-16
DIN-mountable, 16 points I/O module,
used to provide I/O points as noted.
Provides the following I/O points:
• 8 - Universal Inputs (UIs).
• 4 - Digital Outputs (DOs), SPST-relay type.
• 4 - Analog Outputs, 0–10Vdc type.
Up to two (maximum) JO-16 accessory modules are supported.
Wiring is covered in a
separate
document, see the
JO-16 Installation and Configuration Guide
.