Monroe Electronics 639 - Manual (Page 6)

INSTALLATION
6
The unit is supplied in an ABS flanged case for mounting wherever desired.
‘F’ connectors are used for the Video/RF signals, one each for the primary and secondary
input signals, and one for the ouput signal.
Two 9 pin detachable connectors using screw terminals allow connection of the balanced
stereo audio signals, the power input to the unit, and the attachment of an external control, if
required.
A green LED indicates that the unit is in the primary mode, with the relays in an off state. A red
LED indicates that the unit has switched to allow the secondary inputs to be routed to the
common outputs.
The green LED blinks regularly to indicate that the unit is functioning.
The user may use the ‘Reset’ switch if the IP address of the NetBurner ethernet controller has
been misplaced, to reset it to its’ default value. Refer to the included NetBurner manual on the
CD for setup instructions.
The ‘Test’ switch allows the unit to be switched from primary to secondary during installation to
provide an aid to wiring, or to ensure the unit is operational.
The control from the embedded timer has control over the switches if the CTRL control is not
used, as noted on page 4. The user may enter the control of the unit from the ethernet connec-
tions, to manually change the state - ON or OFF - of the switches.
The ‘CTRL’ and ‘TEST’ inputs will only change the state of the switches IF the unit is in the
primary mode; i.e. if the primary inputs are routed to the common outputs. If the unit is in the
secondary mode, with the secondary inputs routed to the common outputs, there will be no
switching. It is intended primarily to test the connections when first connecting the unit, to
ensure the proper routing has been accomplished.