Ring Communications DNB100 User Manual
Page 9

September 2004
DIGITAL NETWORK BRIDGE
DNB100
F9
RING COMMUNICATIONS INC.
NOTE
If any DIP switches are changed while the DNB100 is operating,
it must be RESET or powered off and then on, in order for the
changes to become valid.
Setting Baud Rate
DIP switch SW3-1 through SW3-6 is used to set the desired baud rate for the RS232 data. See
F i g u r e F 3 . SW3-7 and SW3-8 are not used and should be left in the off, 0, position for normal
operation. The network operates at 9600 baud and the RS232 data channel should also be set at
9600. Slower baud rates can be used when using modems, but may decrease network efficiency
and speed.
BAUD
RATE
SW3
1 2 3 4 5 6
19200
1 0 0 0 0 1
0 = off
9600
1 0 0 0 1 0
1 = on
4800
0 1 0 0 0 1
2400
0 1 0 0 1 0
1200
1 0 0 0 1 1
Setting Network and Device Address
DIP switch SW2 is used to set the address of the device. SW2-1 through SW2-3 sets the node
address. The node address for the DNB100 must be zero. SW2-4 through SW2-8 sets the network
address which must match the network that it is attached to. 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.
Communication Protocol
1 Start Bit, 8 Data Bits, Even Parity and 1 Stop Bit.