
3
PREREQUISITES
DHCP Server and Installation
The M-8080D auto-provisions its own Network IP address via DHCP only. To configure and/or
update the device via the M-8080 software utilities, you will need a DHCP server
active on your network. Without a DHCP server, the device will not receive an IP address and
it will not be accessible to both the Controller and Update Software utilities.
Given the necessity of a DHCP server for on-site configuration, TOA advises integrators to
properly coordinate with their client’s IT department to avoid potential issues that may arise with
regards to IT security (i.e., port blocking, MAC filtering, firewalls, etc.) if they wish to utilize their
client’s network. Furthermore, TOA advises installers to pre-commission their devices prior to
installation on-site to bypass using the client location’s network or bring a basic router for
commissioning and configuration.
Shielded cabling for M-8080 Controller and Accessories
The M-8080D’s accessories connect to the device via the RD ports.
The RD ports do not carry regular IP packets. Instead, the pins of the RD ports carry DC power,
and both AES, and RS-485 signals (see M-8080D device manual for details). The AES and
RS-485 standard specifies that the wires be shielded. This means that the cables used
should be STP (Shielded Twisted Pair) with the correct shielded connectors.
Not using shielded connectors has been shown to cause issues because the controllers
will not be properly grounded to the chassis of the M-8080 if a regular unshielded
RJ-45 connector is used. The unshielded cable may work for a shorter distance, but the
use of unshielded cabling will quickly be untenable as the length increases. This will lead to
accessories showing unexpected behavior such as being unable to be detected, unstable
connections and even controller malfunction. Only use shielded cabling with properly
shielded connectors for M-8080D controllers.