Ring Communications DAD104s - Manual (Page 12)

NOVEMBER 2001 DIGITAL ANNUNCIATOR DISPLAY DAD104
D12 RING COMMUNICATIONS INC.
Back-Box
The DAD104 can be mounted into a flush (BBF863) or surface (BBS863) back box. When panel
mounting the DAD104 for use in a console or control panel, a back box may not be necessary but
can be used to enclose the DAD104 electronics if protection is required.
REAR LED INDICATORS See Figure D2.
Four LED's marked D1 through D4, are mounted on the rear of the DAD104 indicating the 3
functions. The LED's are used to show the condition of the microprocessor and the network. Refer
to these indicators when installing or trouble shooting the DAD104 or the Network.
D1 = RX :
Receive data from the Network. Will flash when data is transmitted from another
device to the network. If the Master LED is on, the RX LED will flash when other
devices respond to scanning from the Master. When the Master LED is off the RX LED
will flash constantly.
D2 = TX :
Transmit data to the Network. Will flash when the DAD104 sends data out on the
Network. If the Master LED is on, the TX LED will flash constantly. When the Master
LED is off, TX will only flash when transmitting to other devices.
D3 = RUN :
On steady when microprocessor is running. Will go out momentarily when the
DAD104 is reset manually or if the program locks up.
D4 = MASTER :
On when the DAD104 is a Master on the Network. If other devices are already on-line
the Master LED should not come on when the DAD104 is installed. The Master LED
is under software control and only indicates this unit is in control of the network
scanning. If there are other devices on-line and the Master LED is on and a reset
occurs, D4 will go off.