Patton electronic 1012ARC, Asynchronous user manual † Connection to ground is optional

Switching the Power Supply On and Off

The power supply on/off switch is located on the front panel. When plugged in and switched on, the power LED will glow. Since the Model 1000R16 is “hot swappable”,you do not need to turn off the power before removing rack cards. The power supply may be switched off at any time without harming the installed cards.

NOTE: Please refer to the Model 1000RP Series User Manual AC and DC Rack Mount Power Supplies for fuse and power card replacement information.

4.2 INSTALLING THE MODEL 1012ARC INTO THE CHASSIS

The Model 1012ARC is comprised of a front card and a rear card. The two cards meet inside the rack chassis and plug into each other via mating 50 pin card edge connectors. Use the following steps to install each Model 1012ARC into the Model 1000R16 rack chassis:

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

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

3.Slide the card into the front of the chassis. It should meet the rear card when it is almost in 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.

NOTE: Since the Model 1000R16 chassis allows “hot swapping” of cards, it is not necessary to turn the power off when you install or remove a Model 1012ARC.

4.3 TERMINAL INTERFACE CONNECTION

The RS-232 ports are always the lower ports on the interface card. The 10-pin RJ-45 is pinned according Patton’s Modified Modular Interface Standard (based on the EIA/TIA-561Standard). For specific interface pin-outs, please refer to the diagrams in Appendix D.

The Model 1012ARC is wired as a DCE (Data Circuit-Terminating Equipment). Therefore, it wants to connect to a DTE (Data Termination Equipment). If your RS-232 output device is a DTE, you may need to use a special cable (such as a DB-25 to modular cable). If your RS-232 output device is DCE, call Technical Support at

(301)975-1007 for specific installation instructions.

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4.4 TWISTED PAIR CONNECTION

The Model 1012ARC operates over two twisted pair. In all applications, the twisted pair wire must be 26 AWG or thicker, unconditioned, dry metallic wire. Both shielded and unshielded wire yield favorable results. Note: The Model 1012ARC can only communicate in a closed data circuit with another Model 1012ARC. Dial-up analog circuits, such as those used with a standard Hayes-type modem, are not acceptable. For further information about acceptable wire grades, please refer to the diagrams in Appendix B.

4.4.1 POINT-TO-POINT TWISTED PAIR CONNECTION

The 6-position RJ-11 and 8-position RJ-45 jack options for the Model 1012ARC (always the upper jack on the rear interface card) are pre-wired for a standard TELCO wiring environment. Connection of a 4-wire twisted pair circuit between two or more Model 1012ARCs requires a crossover cable as shown in the following charts.

		RJ-11
SIGNAL	PIN#	COLOR‡	COLOR	PIN#	SIGNAL
GND†	1	Blue‡	White	6	GND†
RCV-◊	2	Yellow	Red	4	XMT-
XMT+	3	Green	Black	5	RCV+
XMT-	4	Red	Yellow	2	RCV-
RCV+	5	Black	Green	3	XMT+
GND†	6	White	Blue	1	GND†
		RJ-45
SIGNAL	PIN#	COLOR‡	COLOR	PIN#	SIGNAL
GND†	2	Orange	Brown	7	GND†
RCV-	3	Black	Green	5	XMT-
XMT+	4	Red	Yellow	6	RCV+
XMT-	5	Green	Black	3	RCV-
RCV+	6	Yellow	Red	4	XMT+
GND†	7	Brown	Orange	2	GND†

†Connection to ground is optional

‡Standard color codes—yours may be different

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