Table of Contents
Advertisement
Quick Links
Advertisement
Table of Contents
Summary of Contents for Optical Systems Design OSD730
- Page 1 OPERATOR MANUAL OSD730 FULL DUPLEX FOUR CHANNEL DIGITAL AUDIO/DATA SYSTEM...
-
Page 3: Table Of Contents
FEATURES AND BENEFITS ......................4 TYPICAL CONFIGURATION ........................5 PRODUCTS AND OPTIONS........................5 TECHNICAL SPECIFICATION ........................6 OSD730 PIN ASSIGNMENTS ........................7 PIN ASSIGNMENTS FOR THE OSD730/4A.4CC VERSION ..............8 INSTALLATION AND OPERATION ......................9 INTRODUCTION ............................9 INSTALLATION ............................9 2.2.1 WARNING AND PRECAUTION...................... -
Page 4: Technical Summary
1.1 BRIEF DESCRIPTION 1.1.1 OVERVIEW The OSD730 is a modem which can provide four channels of full duplex 48KHz, 18 bit digital audio and four channels of full duplex data communications over duplex optical fiber cable. Applications include any communications link which requires a mixture of audio and RS232, RS422 or RS485 data where distance, electrical noise or security considerations render conventional twisted pair links impractical. -
Page 5: Typical Configuration
OPTICAL SYSTEMS DESIGN 1.2 TYPICAL CONFIGURATION Below, in FIGURE 1 is a typical set-up for two OSD730’s that may be used together. OSD730 OSD730 1 or 2 fibers 4 duplex data 4 duplex data 4 duplex audio 4 duplex audio FIGURE 1: TYPICAL CONFIGURATION Note: the OSD730 is configurable for RS422 or RS232 operation. -
Page 6: Technical Specification
Red indicator for active transmit channels Indicators Green indicator for active receive channels Optical 850nm (OSD730) Optical wavelength 1300nm (OSD730L) -15 to -10dBm into multimode fiber (OSD730 only) Transmit power -12 to -10dBm into singlemode fiber (OSD730L only) Receiver sensitivity <-39dBm Receiver saturation >-12dBm Link Budget and Transmission Distance >24dB ( >7km for multimode, >60km for singlemode) -
Page 7: Osd730 Pin Assignments
Audio O/P4 - LINK ALARM NOTE: O/P: Output from OSD730 to external equipment I/P: Input to OSD730 from external equipment RS485 2-Wire half duplex is used to connect several devices to the same bus when only one unit transmits data at a time. -
Page 8: Pin Assignments For The Osd730/4A.4Cc Version
The relay outputs are normally open when a the input state is open or high. The relay outputs are closed when the input state is closed or low (Ground or 0V). If the fiber link is not connected, or power is switched off from the transmitting OSD730 unit, all the relay outputs will be closed. DOC ID: 10102908... -
Page 9: Installation And Operation
2. INSTALLATION AND OPERATION 2.1 INTRODUCTION This section outlines the methods required to install and operate the OSD730 successfully. This information should be studied carefully if damage to the equipment or poor results are to be avoided. This equipment has been fully tested prior to dispatch and is ready for immediate operation. However, it is advisable to check for external transportation damage prior to operation. -
Page 10: Packaging
The OSD730C is designed to be mounted on an even surface and to be secured by means of M4 or smaller screws. The OSD730 card version is designed to be inserted into the OSD350N or OSD370N chassis and secured by means of captivated screws. -
Page 11: Power Supply Connections
The OSD730 card version is powered from the OSD370N or OSD350N chassis. DC power on the OSD730 card version is connected via a DB9 connector. The card version of the OSD730 should be fixed into the OSD370N (or OSD350N) chassis using the captivated screws. Either card can be plugged in or out of the OSD370N (or OSD350N) chassis with power on or off. -
Page 12: Other Connections
Factory Set Default Please note that LK5 and LK14 are factory set and has no end user function. Configuring an OSD730 for different data protocols or different audio input impedances user should not alter the setting of these links. Default settings for links 6 to 9 is set for non-inverting output data. This would be changed in the case of using MIL-STD 188 data instead of RS232, and in the case of having RS422 at one end of the fiber link and RS232 at the other end. -
Page 13: Operation
OPTICAL SYSTEMS DESIGN 2.3 OPERATION 2.3.1 BLOCK DIAGRAMS FIGURE 6 is a simple block diagram for the OSD730. D CONNECTOR CH 1 to CH 4 RS232/RS422 DATA LINE RECEIVERS IN TO OSD730 CH1 to CH 4 Analog to AUDIO INTO... -
Page 14: Controls
RS485 mode. In Table 7 below, switches are labelled as on the front of the OSD730, “0” represents the switch in the DOWN position, “1” represents it in the UP position. -
Page 15: Indicators
FIGURE 8: OSD730 LED INDICATORS The Tx columns of LEDs indicate that a signal is being transmitted from the OSD730 when they illuminate red. The Rx columns of LEDs indicate that a signal is being received by the OSD730 when they illuminate green. -
Page 16: Maintenance
Check that the correct power source (voltage and current) is connected to the power socket. Check that the data signals are connected to the modem correctly and that the distant OSD730 modem has been terminated correctly to any external equipment. -
Page 17: Warranty
For warranty period, please call your local OSD distributor. 4.2 ALL REPAIRS Optical Systems Design reserves the right to repair or replace faulty modules/units. Please obtain a “Return Material Authorisation” number form and number before returning goods. Goods must be returned to Optical Systems Design, Warriewood or its nominated authorised representative, for all repairs in adequate packing material. - Page 18 OPTICAL SYSTEMS DESIGN DOC ID: 10102908 Page 18 OSD730 OPERATOR MANUAL...
- Page 20 Optical Systems Design Pty. Ltd. OPTIC L 7/1 Vuko Pl. Warriewood 2102 P.O. Box 891 Mona Vale N.S.W. Australia 2103 SYSTEMS Telephone: +61 2 9913 8540 Facsimile: +61 2 9913 8735 Email: sales@osd.com.au DESIGN Web Site: www.osd.com.au PTY LTD A.B.N. 83 003 020 504...