Patton electronic 1110ARC 1 RS-232 Connection, Fiber Connections, Operation, LED Status Monitors

4.3.1 RS-232 CONNECTION

The RS-232 port on the rear card of the Model 1110ARC is wired as a DCE, and uses a female HD-26 connector. The HD-26 is an alternate connector according to the EIA RS-232E specification, and the pin-out is the same as a standard DB-25. Pin 26 is not used.

You will need an interface cable to connect the Model 1110ARC to your RS-232 device. Assuming your RS-232 device is a DTE (PC, host, terminal, workstation, etc.), the cable should be wired straight through . You may either provide your own cable, or you may purchase an HD-26 to DB-25 cable from Patton Electronics Company. Please call the Patton Sales Department at (301) 975-1000 for price and delivery information.

Notice! Any terminal cable connected to the Model 1110ARC must be shielded cable, and the outer shield must be 360 degree bonded–at both ends–to a metal or metalized backshell.

4.3.2 FIBER CONNECTIONS

The Model 1110ARC is designed to work with the self-powered Model 1110A, or with another Model 1110ARC. In either case, you will need one unit at each end of a dual fiber cable. This cable connects to the Model 1110ARC using either ST or SMA connectors. Figure 5 (following page) shows a close-up of each of these connector types.

alignment pin faces down

Figure 5. Close up of ST and SMA connections

5.0 OPERATION

Once you have configured each Model 1110ARC and connected the cables, you are ready to operate the units. This section describes the LED status monitors and power-up procedure.

5.1 LED STATUS MONITORS

The Model 1110ARC features nine front panel status LEDs that indicate the condition of the modem and communication link:

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

•The green “TD” and “RD” indicators blink to show positive state data activity. The Red “TD” and “RD” indicators blink to show negative state data activity. Solid red indicates an idle state.

•The green “RTS” and “CD” indicators glow solid to show the control signal is on. The red “RTS” and “CD” indicators glow solid to show the control signal is off. When the 1110ARC is connected to a DTE, RTS will glow green for an incoming signal on RS-232 pin 4. CD will glow green for an incoming signal from the line, and an outgoing signal on RS-232 pin 8.

5.2POWER-UP

There is no power switch on the Model 1110ARC: Power is automatically applied to the 1110ARC when its card-edge connector makes contact with the chassis’ mid-plane socket, or when the chassis’ power supply is turned on. Note: The 1110ARC is a “hot swappable” card—it will not be damaged by plugging it in or removing it while the rack is powered up.

When the local and remote units are both powered up, and are passing data normally, the following LED conditions will exist:

•PWR = green

•TD & RD = flashing red and green

•RTS & DCD = green

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