Patton electronic 1004ABRC user manual LED Status Monitors, Power-Up

5.0 OPERATION

Once you have configured each Model 1004ABRC and connected the cables, you are ready to operate the units. Section 5.0 describes the LED status monitors and the power-up procedure.

5.1 LED STATUS MONITORS

The Model 1004ABRC features front panel LEDs that indicate the condition of the modem and communication link. Figure 6 (below) shows the positions of the LEDs.

Model 1004RC
	Power
	TD
Unit	RD
A
	CD
	TD
Unit
B	RD
	CD

Figure 6. The Model 1004ARC front panel, showing LED positions

•The green “PWR” LED glows when power is applied to the modem through its mid-plane chassis connection.

•The green “TD” and “RD” LEDs show positive state data activity. The red “TD” and “RD” LEDs show negative state data activity. A solid red light indicates an idle state.

•The green “CD” LED lights when the receive carrier is detected; the red LED lights when the receive carrier is absent.

5.2POWER-UP

There is no power switch on the Model 1004ABRC: Power is auto- matically applied to the 1004ABRC when its card-edge connector touches the chassis’ mid-plane socket, or when the chassis’ power is turned on.

NOTE: The 1004ABRC is a “hot swappable” card—it will not be damaged by plugging it in or removing it while the rack is pow- ered up.

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APPENDIX A

PATTON ELECTRONICS MODEL 1004ABRC

SPECIFICATIONS

Transmission Format:	Asynchronous
Data Rate:	0 to 115.2 Kbps
Surge Protection:	Silicon Avalanche Diodes
Control Signals:	DSR turns “ON” immediately after the termi-
	nal raises DTR; DCD turns “ON” after re-
	cognizing the receive signal from the line;
	CTS turns on after the terminal raises RTS
Transmission Line:	2-wire or 4-wire, unconditioned twisted pair
Transmit Mode:	Full or half duplex
Transmit Level:	2V ± 10% differential output voltage
Carrier:	Controlled by data transitions
RTS/CTS Delay:	8 msec or zero
Echo Mode:	Echo and No Echo, supported in both
	2-wire and 4-wire modes
Receiver Impedance:	Low (120 ohms), High (100k Ohms)
Line Connection:	RJ-11 or RJ-45 jack
Surge Protection:	Silicon Avalanche Diodes on twisted pair
	interface from each line to frame ground
Power Supply:	Rack-mount power supply is switchable
	between 120V and 240V AC; rack chassis
	supplies 10V AC to the Model 1004ABRC,
	typical consumption is 700 mW per card
Fuse:	400mA for 120V applications; 200mA for
	240V applications
Temperature Range:	0-50°C (32-122°F)
Altitude:	0-15,000 feet
Humidity:	Up to 95% non-condensing
Dimensions:	0.95”w x 3.1”h x 5.4”l
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