Ring Communications DAD104s - Manual (Page 11)

NOVEMBER 2001 DIGITAL ANNUNCIATOR DISPLAY DAD104
D11 RING COMMUNICATIONS INC.
NOTE
If any DIP switches are changed while the DAD104 is operating,
it must be RESET or powered off and back on, in order for the
changes to become valid.
INSTALLATION - See Figure D2.
Screw terminal blocks, TB1 and TB2, are provided for connections. Both screw terminals are plug
in type for simple terminations.
The DAD104 is connected to the Network by screw terminal TB1, pins 1 through 4. TB 1 pin 1 is
DATA+; pin 2 is DATA-. Pin 3 is positive power input (+12 VDC), and pin 4 is negative (-12 VDC).
The cable from TB1 to the main Network loop must be a two twisted pair cable, one pair Data and
one pair power. Power is supplied to the DAD104 from a fuse in the CB901 or a remote 24 VDC
power supply.
An auxiliary form 'C' contact is available on TB2 to provide a dry contact signal to control an external
alarm (flashing light, loud bell, etc.). TB2 pin 1 is COMMON, pin 2 is N.C. (Normally Closed), and
pin 3 is N.O. (Normally Open). The contact is rated for 2 amps at 24 VDC. Power to the external
device must be supplied on a separate cable pair, preferably on a separate fuse.
Setting Network and Device Address
DIP switch SW1 is used to set the address of the DAD104. See S ETTING N ETWORK A DDRESS of
Chapter A - N ETWORK for a full description for setting addresses, as well as, an addressing chart.