Materials And Tools Required - Distech Controls RS485 Installation Manual

Materials and Tools Required

Suitable tools and fasteners for mounting the unit, attaching it to an already mounted EC-BOS. DIN-rail mounting of the EC-BOS and all its option mod-
ules is recommended.
A small flat-blade screwdriver is required to make wiring connections to RS485 trunks.
Figure 2: Dual RS485 Option module
This document covers the mounting and wiring of a Dual RS485 option module for an EC-BOS.
1 RS485-A port COM n ( next available ). For example, COM3
2 RS485-B port COM n +1 ( next + 1). For example, COM4
Precautions
The following are warnings relating to the installation of the EC-BOS option module.
£ Remove all power to the EC-BOS before attaching (plug in) or detaching (unplug) any option module, to prevent possible
equipment damage.
£
Removal of the EC-BOS's cover is not required. No configurable or user-serviceable items (such as jumpers or a bat-
tery) are inside the option module.
Static charges produce voltages high enough to damage electronic components. The microprocessors and associated circuitry within the devices are
sensitive to static discharge.
£ Work in a static-free area.
£
Discharge any static electricity you may have accumulated. Discharge static electricity by touching a known, securely
grounded object.
Mounting
Mounting the EC-BOS and all option modules on a 35mm wide DIN rail is recommended. Mounting on a DIN rail ensures accurate alignment of connec-
tors between all modules. Tabs on the EC-BOS or module can be used for panel mounting as an alternate to DIN rail mounting.
£ Remove all power to the EC-BOS before installing or removing option modules. See
2 / 7
"Precautions [pg. 2]," page 2.