Patton electronic Install the Model 1092ARC Series Into the Chassis, Connect to a DTE Device

4.2 INSTALL THE MODEL 1092ARC SERIES INTO THE CHASSIS

The Model 1092ARC Series is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other by way of mating 50 pin card edge connectors. Use the following steps as a guideline for installing each Model 1092ARC Series into the rack chassis:

1.Slide the rear card into the back of the chassis along the metal rails provided.

2.Secure the rear card using the metal screws provided.

3.Slide the front card into the front of the chassis. It should meet the rear card when it’s almost all the way into the chassis.

4.Push the front card gently into the card-edge receptacle of the rear card. It should “click” into place.

5.Secure the front card using the thumb screws.

4.3WIRE THE MODEL 1092ARC SERIES

Each of the rear interface cards compatible with the Model

1092ARC Series has one terminal interface port and one 2-wire/4-wire (twisted pair) port. For specific interface pin-outs, refer to the diagrams in the Appendix of this manual.

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4.3.1 Connect to a “DTE” Device

Regardless of the interface module you choose, the Model 1092ARC’s serial port is always wired as a DCE. Therefore it “wants” to plug into a DTE such as a terminal, PC or host. When making the connection to your DTE device, use a straight through cable of the shortest possible length that is appropriate to the interface you are using. When purchasing or constructing an interface cable, please refer to the pin diagrams in Appendix B as a guide.

4.3.2 Connect to a “DCE” Device

Since the Model 1092ARC’s serial port is always wired as a DCE, you must use a null modem cable when connecting to another DCE device such as a CSU/DSU, modem or multiplexer. This cable should be of the shortest possible length that is appropriate to the interface you are using. When purchasing or constructing a null modem interface cable, use the pin diagrams in Appendix B as a guide.

4.3.3 Connect the Twisted Pair Interface

The Model 1092ARC supports communication between two DTE devices at distances to 5 miles (8 km) over 24AWG (.5mm) twisted pair wire. There are two essential requirements for installing the Model 1092ARC:

1.These units work in pairs. Both units at the end of the twisted pair must have the same two-wire/four-wire setting. For instance, if you are operating in two-wire mode, both units must be in the two-wire setting. Similarly, if you are operating in four-wire mode, both units must be in the four-wire setting.

2.To function properly, the Model 1092ARC needs one or two twisted pair of metallic wire. This twisted pair must be unconditioned, dry, metallic wire, between 19 (.9mm) and 26 AWG (.4mm) (the higher number gauges may limit distance somewhat). Standard dial-up telephone circuits, or leased circuits that run through signal equalization equipment, or standard, flat modular telephone type cable, are not acceptable.

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