2.SETTINGS

2.1Switch Panel Settings

Communication parameters are set with the switches in the switch panel. Unfasten two screws to access the switches. Note that it is not necessary to turn off the IB-681 to access the switches.

1

2

3

4

5 6 7

8

ON

Data Rate

64K

56K

: Factory setting

Figure 3 Switch panel

2.1.1 Data rate

Set the data rate according to land line/network. The default setting is 64k (64 Kbps). 56k is for USA ISDN circuit, for example. Data rate cannot be change after connecting with a subscriber.

2.1.2 DIP switches

Table 1 DIP switch functions

SW No.

Function

OFF

ON

 

 

 

 

SW1

Automatic call

Direct call

Address call

 

 

 

 

SW2

Terminal interface

RS-449

RS-232

 

 

 

 

SW3

Automatic data

NO

YES

rate switching

 

 

 

 

 

 

 

SW4

Command format

HDLC

BSC

 

 

 

 

SW5

Character format

8 bit/no parity

7 bit/odd parity

 

 

 

 

SW6

Not used

 

 

 

 

 

 

SW7

Not used

 

 

 

 

 

 

SW8

Not used

 

 

 

 

 

 

SW1: Automatic call mode

OFF: Call starts with reception of DTR signal from HSD terminal.

ON: Call starts when subscriber number from the HSD terminal is loaded on the TxD line.

3

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Furuno IB-681 manual Switch Panel Settings, Data rate, DIP switches, SW No Function