Ring Communications DAD104m - Manual (Page 10)

NOVEMBER 2005 DAD104 DIGITAL ANNUNCIATOR DISPLAY
RING COMMUNICATIONS, INC. 10
INSTALLATION .
The DAD104 operates on +24 VDC. It can be powered from the central exchange or can be powered
locally by a separate 24 VDC regulated power supply.
The recommended cord is the BF640A to connect the DAD104 to the RJ45 network jack, KB171. Cords
and jacks must be ordered separately.
1 - 8 pin (RJ45) Network connections :
One modular jack is provided at the back of the DAD104. Use modular cables with straight through pin
configuration only! An 8-pin (RJ45) modular jack (KB171) and cord (BF640A) are required for connection to
the network.
PIN# - DESIGNATION
1 - No connection.
2 - +12 VDC power input
3 - Data + (positive)
4 - No connection.
5 - No connection.
6 - Data - (negative)
7 - -12 VDC power input
8 - External Alarm.
The maximum total network length is 7000 feet. A unshielded twisted pair cable should be used for the data
pair (24 or 22 AWG).
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.
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.