3.2.1 SWITCH SETTINGS

All possible settings for the Model 1004’s configuration switches are presented in the summary table below. If you have additional questions, contact Technical Support at (301) 975-1000.

SWITCH SUMMARY TABLE

Position

Function

Off Position

On Position

 

 

 

 

SW1-1

RTS/CTS Delay

0mS

8mS

SW1-2

Echo Enable

Echo “Off”

Echo “On”

SW1-3

Carrier Control

Constantly “On”

Controlled by RTS

SW1-4

Impedance

High (120K Ohm)

Low (120 Ohm)

 

 

 

 

SW2

2 wire/4 wire

2-wire

4-wire

 

 

 

 

SW 1-1: RTS/CTS Delay

The setting for Switch SW1-1 determines the amount of delay between the time the Model 1004 “sees” RTS and when it sends CTS. (This option is available in DCE mode only).

SW1-1

Setting

Off

0mS

On

8mS

SW 1-2: Echo Enable

Switch SW1-2 determines whether the Model 1004 echoes data back to the transmitting device. (Half duplex modes only).

SW1-2

Setting

Off

Echo Off

On

Echo On

SW 1-3: Carrier Control Method

Switch SW1-3 determines whether the carrier is “constantly on” or “controlled by RTS”. This setting allows for operation in switched carri- er, multipoint and/or hardware handshaking applications.

SW1-3

Setting

Off

Constantly “on”

On

Controlled by RTS

 

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SW 1-4: Impedance

Switch SW1-4 defines a termination resistance. The Model 1004’s generator can drive 50 unit loads including two termination resistances of 120 Ohms each.

SW1-4

Setting

Off

High (120K Ohm)

On

Low (120 Ohm)

SW 2: 2-Wire/4-Wire

Switch SW1-4 determines whether the Model 1004 will operate in either 2-wire or 4-wire mode.

SW1-4

Setting

Off

2-wire

On

4-wire

3.2.2 CONFIGURATION SWITCH APPLICATIONS

The table below shows you how to set the Model 1004's configu- ration switches to fit several common applications. If you have any questions, call Patton Technical Support at (301) 975-1007.

TYPICAL SWITCH APPLICATIONS

Switch

 

Point-to-Point

 

Multi-point

 

 

 

 

 

 

 

Settings

 

 

 

 

 

 

 

 

4W

4W HDX

 

2W

4W

 

2W

SW1-1: RTS/CTS*

ON

ON

 

ON

ON

 

ON

SW1-2: Echo

OFF

ON

 

OFF

ON

 

OFF

SW1-3: Carrier

OFF

ON

 

ON

Master-OFF

 

ON

 

 

 

 

 

Slaves-ON

 

 

 

 

 

 

 

 

 

 

SW1-4: Impedance

ON

ON

 

ON

Master - ON

 

 

 

 

 

Slaves - HIGH

 

 

 

 

 

Last Slave - ON

SW2: 2-wire/4-wire

ON

ON

 

OFF

ON

 

OFF

 

 

 

 

 

 

 

 

 

 

*NOTE: RTS/CTS Delay setting should be based upon transmission timing.

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Patton electronic 1004S user manual Switch Settings, Switch Summary Table, Configuration Switch Applications