Patton electronic 1020S user manual Switch Settings, Switch Summary Table, Signal

3.2 SWITCH SETTINGS

All possible settings for the Model 1020’s configuration switches are presented in the summary table and descriptions below. If you have additional questions regarding configuration, contact Patton Technical Support at (301) 975-1007.

SWITCH SUMMARY TABLE

Position	Function	Factory Default
Switch 1	RTS/CTS delay	On		7 mSec delay
Switch 2	Data Rate	On	}
Switch 3	Data Rate	Off		9,600 bps
Switch 4	Data Rate	Off

Switch 1: RTS/CTS Delay

After request to send (RTS) is raised by the host terminal, the 1020/1020S 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 7mS or 53mS delay can be selected.

Switch 1	Setting
On	7 mS
Off	53 mS

Switches 2, 3 and 4: Data Rate

Switches 2 thru 4 are set in combination to allow the Model 1020 to be used at data rates from 1.2 Kbps up to 19.2 Kbps.

Switch 2	Switch 3	Switch 4	Setting
On	On	On	1.2 Kbps
On	On	Off	2.4	Kbps
On	Off	On	4.8	Kbps
Off	On	On	7.2	Kbps
On	Off	Off	9.6	Kbps
Off	On	Off	14.4	Kbps
Off	Off	On	19.2	Kbps
Off	Off	Off	19.2	Kbps

4.0 INSTALLATION

Once the Model 1020 is properly configured, it is ready to connect to your system. This section tells you how to properly connect the Model 1020 to the twisted pair and RS-232 interfaces, and how to operate the Model 1020.

4.1 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1020 supports data-only communication between two RS-232 devices at distances to 11 miles and data rates to 19.2 Kbps. There are two essential requirements for installing the Model 1020:

1.These units work in pairs. Therefore, you must have one Model 1020 at each end of a two twisted pair interface.

2.To function properly, the Model 1020 needs two twisted pairs of metallic wire. These pairs must be unconditioned, dry, metallic wire, between 19 and 26 AWG (the higher number gauges may limit distance somewhat). Standard dial-up telephone circuits, or leased circuits that run through signal equalization equipment, are not acceptable.

For your convenience, the Model 1020 is available with three different twisted pair interfaces: RJ-11 jack, RJ-45 jack and terminal blocks with strain relief.

4.1.1 TWISTED PAIR CONNECTION USING RJ-11 OR RJ-45

The RJ-11 and RJ-45 connectors on the Model 1020’s twisted pair interface are pre-wired for a standard TELCO wiring environment. The signal/pin relationships are shown below:

RJ-11	SIGNAL	RJ-45	SIGNAL
1	GND†	1	N/C
2	RCV‡	2	GND†
3	XMT	3	RCV‡
4	XMT	4	XMT
5	RCV	5	XMT
6	GND	6	RCV
		7	GND
		8	N/C

†Connection to ground is optional

‡The Model 1020 is not polarity sensitive

5 6