beautypg.com

Patton electronic 1070 User Manual

Page 7

background image

Table 1. Summary of switch settings, showing factory defaults

3.1 DETAILED SWITCH SETTINGS

This section provides detailed information about the function of

each DIP switch and lists all possible settings. Use this section as
configuration guide for applications where the Model 1070's default
would not provide correct results.

3.1.1 DATA RATE

Switches 1 thru 3 are set in combination to allow the Model 1070 to

be used at data rates from 1200 bps up to 19,200 bps.

Switch 1

Switch 2

Switch 3

Setting

On

On

On

1.2 Kbps

Off

On

On

2.4 Kbps

On

Off

On

4.8 Kbps

On

On

Off

7.2 Kbps

Off

Off

On

9.6 Kbps

Off

On

Off

14.4 Kbps

On

Off

Off

19.2 Kbps

Off

Off

Off

19.2 Kbps

Note: Switch 4 is not used.

5

SWITCH SUMMARY TABLE

Position

Function

Factory Default

Switch 1

Data Rate

Off

Switch 2

Data Rate

Off

Switch 3

Data Rate

On

Switch 4

Not Used

N/A

Switch 5

Transmit Clock

Off

Internal Clock

Switch 6

RTS/CTS Delay

On

Switch 7

RTS/CTS Delay

Off

Switch 8

Carrier Control

Off

Constant

8 ms

9,600 Bps

}

}

3.1.2 TRANSMIT CLOCK

Switch 5 is used to specify the clocking method. The Model 1070

can provide an internal clock (Pin 15), or receive an external clock
(from Pin 24).

Switch 5

On = External
Off = Internal

3.1.3 RTS/CTS DELAY

Switches 6 and 7 are used together to specify RTS/CTS delay.

After request to send (RTS) is raised by the host terminal, the Model
1070 raises CTS after a slight delay in order to give the remote terminal
time to receive an incoming signal. Depending on the type of
environment, either a 0 mS, 8 mS or 53 mS delay can be selected.

Switch 6

Switch 7

On

On = 0 mS

On

Off = 8 mS

Off

On = 53 mS

3.1.4 CARRIER ENABLE

Switch 8 is used to specify how the carrier signal is raised. In most

point-to-point full duplex applications, the carrier signal can remain
constantly "high". In a multi-point environment, contention for the line is
"controlled" by RTS.

Switch 8

On = Controlled by RTS
Off = Constant Carrier

6