Wiring and Device Connections
13
Instruction Manual - Massio ControlPads and Keypads
Control Ports and Indicators
The following sub-sections describe each control port on the Massio ControlPads. Refer to
component layout of the rear panels of each type of Massio ControlPad.
RS-232
The Massio ControlPads features up to two RS-232 300-115,200 baud connector ports so you can connect up to two serial devices
to the ControlPad. The MCP-106 features one RS-232 connector; the MCP-108 features two connectors. The serial connectors
comply with EIA-232-F signal levels. The RX line supports polling for RS-232 devices for statuses such as power status, input
status, and lamp hours, so that this information can be provided to RMS.
NOTE:
Massio ControlPads do not support RS-422 or RS-485 communications to devices.
FIG. 5 displays the RS-232 ports on the MCP-108.
FIG. 5
RS-232 Serial Ports (MCP-108)
FIG. 6 displays the wiring for the RS-232 connector.
FIG. 6
RS-232 connector wiring
RELAYS
You can connect up to two independent external relay devices to the Relay connectors on the ControlPad. The relay port is only
available on the MCP-108.
FIG. 7 displays the RELAYS connector.
FIG. 7
RELAYS connector
Each relay is isolated and normally open.
24 V
DC
@ 1 A maximum
28 V
AC
@ 1 A maximum
RX
ControlPad
TX
GND
GND
RX
TX
External Device