Patton electronic 1015S Setting The Dce/Dte Switch, Connection To The Twisted Pair Interface

3.0 CONFIGURATION

The Model 1015 is designed to be easy to use. There are no internal jumpers or configuration switches to set, so there is no need to open the case to configure the unit (you may need to open the case for wire connection—refer to section 4.0). However, in some models, you may have to set the external DCE/DTE switch.

The figure below shows both versions of the Model 1015. If your model looks like Figure 1, follow the instructions in Section 3.1. If your Model 1015 looks like Figure 2, your unit will always operate in DCE mode. Follow the instructions in Section 4.0.

		Terminal
DCE/DTE		Block
Switch
	Terminal
	Block

Figure 1 Figure 2

3.1 SETTING THE DCE/DTE SWITCH

If your Model 1015 looks like Figure 1, it comes equipped with an external DCE/DTE switch and requires special attention. If the device connected to the Model 1015 is a modem or multiplexer (or is wired like one), move the switch to “DTE”. This causes the Model 1015 to behave like Data Terminal Equipment and transmit data on pin 1.

DCE DTE

If the device connected to the Model 1015 is a PC, terminal or host computer (or is wired like one), move the switch to “DCE”. This setting causes the Model 1015 to behave like Data Communications Equipment and transmit data on pin 9.

3

4.0 INSTALLATION

Once you have properly configured the DCE/DTE switch, you are ready to connect the Model 1015 to your system. This section tells you how to properly connect the Model 1015 to the twisted pair and RS-232 interfaces, and how to operate the Model 1015.

4.1 CONNECTION TO THE TWISTED PAIR INTERFACE

The Model 1015 supports data-only communication between two RS-232 devices at distances to 17 miles and data rates to 19.2 Kbps. There are two essential requirements for installing the Model 1015:

1.These units work in pairs. Therefore, you must have one Model 1015 at each end of a two twisted pair interface.

2.To function properly, the Model 1015 needs two twisted pairs of metallic wire. The pairs must be unconditioned, dry metallic wire, between 19 and 26 AWG (the higher number gauges may limit distance). Standard dial-up telephone circuits, or leased circuits that run through signal equalization equipment are not acceptable.

For your convenience, the Model 1015 is available with three dif- ferent 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 1015’s twisted pair interface are pre-wired for a standard TELCO wiring environment (see Figure 3). The table on the following page shows the signal/pin rela- tionships:

1	- Blue	1	- Blue
		2	- Orange
2	- Yellow	3	- Black
3	- Green	4	- Red
4	- Red	5	- Green
5	- Black	6	- Yellow
6	- White	7	- Brown
		8	- Slate

Figure 3. AT&T standard modular color codes

4