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OPTICAL SYSTEMS DESIGN 

 

DOC ID: 10105510 

OSD138 OPERATOR MANUAL

 

 

PAGE 12 

 
 
The 6-way data control switch is located at the front of OSD138 modem. Switches SW1 (T1), SW5 
(T5) and SW6 (T6) are used for setting the data mode options. 
 

TABLE 6: DATA MODE SWITCH SETTINGS 

 

SWITCH 

STATE 

FUNCTION 

SW1(T1) 

OFF 

RS232/RS422 

ON 

2 WIRE AND 4 WIRE RS485 

SW5(T5) 

OFF 

NO BIAS RS485 

ON 

BIAS RS485 

SW6(T6) 

OFF 

RS232/RS422 OR 4 WIRE RS485 

ON 

INVERSE RS232 OR 2WIRE RS485 

 

Switches SW2 (T2), SW3 (T3) and SW4 (T4) are used for setting RS485 turnaround time. 
 

TABLE 7: RS485 TURNAROUND TIME SWITCH SETTINGS 

 

SW2 

(T2) 

SW3 

(T3) 

SW4 

(T4) 

RS485 TURNAROUND TIME 

ON 

ON 

ON 

10us 

ON 

ON 

OFF 

30us 

ON 

OFF 

ON 

100us 

ON 

OFF 

OFF 

300us 

OFF 

ON 

ON 

1ms 

OFF 

ON 

OFF 

3ms 

OFF 

OFF 

ON 

10ms 

OFF 

OFF 

OFF 

30ms 

 

 
 
 

 

 

  

 
 
 
 
 
 
 

FIGURE 7: FRONT VIEW OF DATA MODE SWITCH 

 
 
 

Switch setting is example 

only 

OFF 

ON 

  1         2          3 

   4          5          6 

Содержание OSD138

Страница 1: ...OPERATOR MANUAL OSD138 UNIVERSAL FIBER OPTIC DATA MODEM ...

Страница 2: ......

Страница 3: ...TINGS 11 3 MAINTENANCE 13 3 1 INTRODUCTION 13 3 2 EXTERNAL INSPECTION 13 3 3 ROUTINE MAINTENANCE 13 4 WARRANTY 14 4 1 WARRANTY PERIOD 14 4 2 REPAIRS 14 4 2 1 WARRANTY REPAIRS 14 4 2 2 OUT OF WARRANTY REPAIRS 14 4 2 3 SITE REPAIRS 14 4 2 4 EXCLUSIONS 14 TABLE 1 PRODUCT OPTIONS 3 TABLE 2 TECHNICAL SPECIFICATIONS 5 TABLE 3 DATA CONNECTOR PIN ASSIGNMENTS 6 TABLE 4 DC POWER CONNECTION 9 TABLE 5 OSD138 ...

Страница 4: ...ble and over up to at least 50km of singlemode fiber The OSD138 can be used with any standard multimode optical fiber and is available optionally for singlemode fiber use Wavelength Division Multiplexing WDM is available to allow the use of a single fiber for transmission and reception For 2 wire RS485 transmission the OSD138 is also available with Single Fiber Single Wavelength operation SFSW whi...

Страница 5: ... 850nm Rx 1310nm works in pair with WB or C WB WB or C WB 1 fiber Wavelength Division Multiplexed WDM multimode operation with Tx 1310nm Rx 850nm works in pair with WA or C WA L WA or LC WA 1 fiber Wavelength Division Multiplexed WDM singlemode operation with Tx 1310nm Rx 1550nm works in pair with L WB or LC WB L WB or LC WB 1 fiber Wavelength Division Multiplexed operation WDM singlemode operatio...

Страница 6: ...on ITEM DESCRIPTION Multimode for two fiber version L Singlemode for two fiber version ITEM DESCRIPTION Card version 3RU high chassis mount for OSD370or OSD350 C Stand alone case version extrusion case ITEM DESCRIPTION Two optical fiber operation or SFL version or SFM version WA Wavelength Division Multiplexed WDM single fiber operation with Tx 1310nm and Rx 1550nm SFM L C WA 1 2 3 4 1 3 4 2 ...

Страница 7: ... Saturation 12dBm peak Input User selectable between RS422 485 levels TTL on the input with input floating or RS232 levels User Controls A 6 way user settable lever switch controls RS422 RS232 or RS485 RS232 polarity 2 wire or 4 wire RS485 RS485 bias on off RS485 turnaround times Electrical Connectors 9 pin male subminiature D connector for power on card 2 way terminal block with screw clamps for ...

Страница 8: ...r RS485 2 Wire half duplex is used to connect several devices to the same bus when only one unit transmits data at a time All units are normally in high impedance receive mode waiting for data When transmission of data is requested the device waits for a protocol specific turn around time delay before transmitting after which it returns to receive mode RS485 4 Wire full duplex is used for master s...

Страница 9: ... product may cause radio interference in which case the user may be required to take adequate measures OPTICAL OUTPUT OPERATION WARNING Laser Safety Class 1 Laser Product per IEC EN 60825 1 20011 standard Class 1 The OSD138 is a Class 1 laser product PRECAUTIONS All service personnel should be provided training as to the hazards of direct viewing of laser radiation and of the precautionary measure...

Страница 10: ...surface and to be secured by means of M4 or smaller screws The OSD138 card versions is designed to be inserted into a chassis and secured by means of captivated screws a Module Version b Card Version FIGURE 4 OSD138 MODULE AND CARD MOUNTING DIMENSIONS 25 100 210 R2 1 R2 1 Ø8 5 8 0 8 0 DETAIL A 6 0 25 6 104 7 6 0 25 6 DETAIL A 49 5 113 4 31 3 138 4 100 7 ...

Страница 11: ...le 4 TABLE 4 DC POWER CONNECTION External Power Pin Specification Pin 1 11V to 35V DC or 22 to 28V AC Pin 2 Ground FIGURE 5 OSD138C POWER SUPPLY CONNECTIONS NOTE 1 The OSD138 card version should be fixed into the OSD370 or OSD350 chassis using the captivated screws 2 The cards can be plugged in or out of the chassis with power on or off 2 2 4 BASIC CONNECTIONS Data signals are connected to the 8 w...

Страница 12: ... not illuminate Setting of RS422 RS232 or RS485 data transfer is done by setting switches on the 6 Way Data Mode Switch according to Table 6 If RS485 is used Table 7 gives the settings for turnaround times Connect the Data cables to 8 way mating terminal connector according to Table 3 then plug it into the connector on the OSD138 unit The LED indicator Tx Data should illuminate amber when Data is ...

Страница 13: ... normal operation the bias is desirable and the switch is left in the ON state However there may be occasions where external devices already provide this bias In such cases the bias is disabled by setting this switch to the OFF state The settings are given in Table 6 below 2 wire RS485 operates by sending bursts of data onto a 2 wire bus In order to determine the direction of transmission the OSD1...

Страница 14: ... AND 4 WIRE RS485 SW5 T5 OFF NO BIAS RS485 ON BIAS RS485 SW6 T6 OFF RS232 RS422 OR 4 WIRE RS485 ON INVERSE RS232 OR 2WIRE RS485 Switches SW2 T2 SW3 T3 and SW4 T4 are used for setting RS485 turnaround time TABLE 7 RS485 TURNAROUND TIME SWITCH SETTINGS SW2 T2 SW3 T3 SW4 T4 RS485 TURNAROUND TIME ON ON ON 10us ON ON OFF 30us ON OFF ON 100us ON OFF OFF 300us OFF ON ON 1ms OFF ON OFF 3ms OFF OFF ON 10ms...

Страница 15: ...ortion of their support circuitry σ Some components within the unit are electrostatic sensitive and ESD precautions should be taken when performing maintenance upon the unit 3 2 EXTERNAL INSPECTION Visually check for the following σ Check that the correct power source is connected to the power socket σ Check that the data signals are connected to the modem correctly and that the distant OSD138 mod...

Страница 16: ...ve for all repairs 4 2 1 WARRANTY REPAIRS Return shipments to OSD shall be at customer s expense and freight back to the customer will be at OSD expense 4 2 2 OUT OF WARRANTY REPAIRS OSD reserves the right to repair or replace any faulty goods Freight costs and insurance for both journeys are met by the user All equipment repaired by OSD will have a 3 Month Warranty from the date of dispatch 4 2 3...

Страница 17: ...OPTICAL SYSTEMS DESIGN DOC ID 10105510 OSD138 OPERATOR MANUAL PAGE 15 ...

Страница 18: ...OPTICAL SYSTEMS DESIGN DOC ID 10105510 OSD138 OPERATOR MANUAL PAGE 16 ...

Страница 19: ...OPTICAL SYSTEMS DESIGN DOC ID 10105510 OSD138 OPERATOR MANUAL PAGE 17 ...

Страница 20: ...uko Pl Warriewood 2102 P O Box 891 Mona Vale N S W Australia 2103 Telephone 61 2 9913 8540 Facsimile 61 2 9913 8735 Email osdsales osd com au Web Site www osd com au OPTIC L SYSTEMS DESIGN PTY LTD A B N 83 003 020 504 Printed in Australia ...

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