Ring Communications DNB100 User Manual

Page 9

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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.

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