Patton electronic 1140RC user manual Features, Description, Front Card Configuration

2.0 GENERAL INFORMATION

Thank you for your purchase of this Patton Electronics product. This product has been thoroughly inspected and tested and is warranted for One Year parts and labor. If any questions or problems arise during installation or use of this product, please do not hesitate to contact Patton Electronics Technical Support at (301) 975-1007, support@patton.com or www.patton.com.

2.1FEATURES

•Supports async or sync communication over dual optical fibers

•RS-232 Data rates to 57.6 Kbps

•Distances to 2 miles

•V.54 and V.52 Diagnostics

•Mounts in Patton’s 16-Card Rack Chassis

•Compatible with the Patton Model 1140 self-powered modem

•Immune to RFI/EMI noise, ground loops and transient surges

•Easily accessible configuration jumpers & switches

•Bi-level LED status indicators

•Works with switchable 120V or 240V rack mount power supply

•SMA or ST connectors available (HD-26 female RS-232 port) on rear Interface card

2.2DESCRIPTION

The Patton Model 1140RC fiber optic rack card modem is the rack mountable counterpart to Patton’s Model 1140 self-powered, fiber optic modem. Communicating full or half duplex over dual optical fibers, the Model 1140RC supports data rates to 57.6 Kbps and distances to 2 miles. Both V.54 and V.52 diagnostics are built into the unit. Like all fiber optic modems, the Model 1140RC is inherently immune to RFI/EMI noise, ground loops and transient surges. The carrier may be switch selected as either “Continuously On” or “Controlled by RTS”. Five pairs of bi-level LED indicators monitor TD, RD, RTS, CD, test and error. A single LED monitors power.

The Model 1140RC is designed to mount in Patton’s 2U high 19” rack chassis. This 16-card chassis has a switchable 120/240 volt power supply and mounts cards in a mid-plane architecture: The front “brains” half-card can be plugged into different rear “interface” cards. The Model 1140RC is available with a choice of two interface cards: one with SMA connectors, and one with ST connectors. Both cards are equipped with an HD-26 female connector for the RS-232 interface.

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3.0 CONFIGURATION

This section describes the location and orientation of the Model 1140RC’s configuration switches and jumpers, and provides detailed instructions for all possible settings.

The Model 1140RC uses a combination of DIP switches and jumpers that allow configuration to an extremely wide range of applications. Designed around a mid-plane architecture, the Model 1140RC incorporates both front and rear cards. Configuration of both may be necessary. The switches/jumpers are accessible when the cards are removed from the rack chassis. Once configured, the Model 1140RC is designed to operate transparently, without need for frequent re-configuration.

3.1 FRONT CARD CONFIGURATION

The Model 1140RC front card has two sets of eight switches (S1 & S2), which are mounted on the PC board (Figure 1, below). These configuration switches allow you to configure the Model 1140RC for a wide range of applications. The ON/OFF orientation of the DIP switches is shown in figure 2 (below).

SwitchSet 2

(Switch 2:1 on bottom)

Switch Set 1

(Switch 1:1 on bottom)

Figure 1. Model 1140RC front card jumper locations

	ON
ON

1 2 3 4 5 6 7 8

OFF

Figure 2. Close-up of DIP switches showing “ON” and “OFF” positions

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