Patton electronic 1000RC Switching the Power Supply On and Off, 4.3 RS-232 CONNECTION, Signal

Switching the Power Supply On and Off

The power switch is located on the front panel. When plugged in and switched on, a red front panel LED will glow. Since the Model 1000R16P is a “hot swappable” rack,it is not necessary for any cards to be installed before switching on the power supply. The power supply may be switched off at any time without harming the installed cards.

4.2 INSTALLING THE MODEL 1000RC INTO THE CHASSIS

The Model 1000RC 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 1000RC into the Model 1000R16P 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 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.

Note: Since the Model 1000R16P chassis allows “hot swapping” of cards, it is not necessary to power down the rack when you install or remove a Model 1000RC.

4.3 RS-232 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.

Notice! Any terminal cable connected to the Model 1000RC must be shielded cable, and the outer shield must be 360 degree bonded–at both ends–to a metal or metalized backshell.

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The Model 1000RC is wired as a DCE (Data Communications 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, you will require a null modem connection. Call Patton Technical Support at (301) 975-1007 for specific installation instructions.

4.4 TWISTED PAIR CONNECTION

The Model 1000RC operates full duplex 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 are satisfactory. Note: The Model 1000RC can only be installed on private twisted pair cable. 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.

Notice! Any modular twisted pair cable connected to the Model 1000RC must be shielded cable, and the outer shield must be properly terminated to a shielded modular plug on both ends of the cable.

4.4.1 POINT-TO-POINT TWISTED PAIR CONNECTION

The 6-position RJ-11 and 8-position RJ-45 jack options for the Model 1000RC–always the upper jack on the rear interface card–are prewired for a standard TELCO wiring environment (See Appendix D for pin number orientations). Connection of a 4-wire twisted pair circuit between two or more Model 1000RCs requires a crossover cable as shown in the following charts.

	RJ-11 Cable
SIGNAL	PIN#	PIN#	SIGNAL
GND†	1-----------------------	6	GND†
RCV-	2-----------------------	4	XMT-
XMT+	3-----------------------	5	RCV+
XMT-	4-----------------------	2	RCV-
RCV+	5-----------------------	3	XMT+
GND†	6-----------------------	1	GND†

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