DMP Electronics SCS-1R Model SCS-100Line Card, Transmit Level, Echo Cancel Off, Power Monitor LED

Installation

Model SCS-100 Line Card

Description

The SCS-100 provides for one incoming line of digital dialer (DD) communication to DMP Command Processor™ panels. Each line card includes one RJ11X cable for phone line connection from a customer supplied RJ11X connection block.

Transmit Level

The Transmit Level is the level of signal strength at which the SCS-100 transmits through the phone line. To adjust the transmit level, place the 2-pin jumper on the desired level on the J11 Transmit Level header.

The Transmit Level comes from the factory set to -9 dB. -9 dB is the quietest, 0 dB is the loudest.

Echo Cancel Off

Echo Cancellation is technology used by telephone companies to stop echo from interfering with digital telephone transmissions. In some cases this technology can interfere with alarm signals. If you have problems with Echo Cancellation interfering with your signals, place the 2-pin jumper on the J12 Echo Cancel Off header to the

YES position to turn off the echo cancellers. If you are not having problems with the telephone company echo cancellation, leave the jumper on the default setting of NO to leave the echo cancelers on.

Installing the SCS-100

Install the SCS-100 in any one of the SCS-RACK five right hand positions with the card puller in the up position. Connect the 10-position flat cable from the SCS-150 processor card. The line card line number is determined by the processor card cable it is connected to.

THE LIGHT BROWN (PIN 1) WIRE OF THE FLAT CABLE CONNECTOR MUST FACE UP ON THE LINE CARD.

SCS-100

PWR

TD

RD

CD

OL

RG

DT

Phone Line Fail

Silence

Echo Cancel Off		Transmit Level
		J11
NO	YES
J12		-9 -6 -3 0
			RJ11X Phone
			Line Input

Connecting the Phone Line

Install the RJ11X cable provided with the line card between the RJ11X connector on the line card front to a customer supplied RJ jack. Use a standard 103J voice grade (analog) line. A slot is provided in the receiver back plate for the RJ11X cable to pass through. Maximum line impedance is 100 Ohms.

The SCS-100 is registered with the FCC, registration number CCK8GW-16197-AL-N; Ringer Equivalence 1.2.

Phone Line Monitor

The SCS-100 monitors the incoming phone line voltage. During a loss of phone line voltage, the red Phone Line Fail LED lights and the alert sounds. The alert can be silenced by pressing the silence switch on the SCS-100. The LED remains lit until the phone line is restored.

Power Monitor LED

The green LED labeled PWR lights when the power supply on the line card is working properly.

SCS-100 LEDs

The six yellow LEDs indicate the line card condition during the various stages of communication. A description of each LED is listed below:

TD	Transmit Data	On when the line card is transmitting to a panel.
RD	Receive Data	On when the line card is receiving data from a panel.
CD	Carrier Detect	On when the carrier tone from the panel is detected on the phone line.
OL	On Line	On when a digital dialer line card has answered the phone line.
RG	Ring Detect	On when ringing voltage is detected on phone line.
DT	Data Terminal Ready	On when the line card is ready for operation.
SCS-1R Installation Guide		Digital Monitoring Products

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