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T1/E1 FIBEROPTIC LINE DRIVER

3.6.3 F

IBEROPTICS

C

ONNECTION

Two fiberoptic SMA, ST or FC connectors are located on the rear panel, marked
TX and RX. Remove the protective caps from the connectors and store them in a
safe place for later use. Connect the transmit fiber to the connector marked TX
and the receive fiber to the connector marked RX. At the remote unit, the transmit
fiber must be connected to RX and the receive fiber to TX.

3.6.4 E1/T1 C

ABLE

C

ONNECTION

E1 or T1 link connections depend on the selected interface:

• 120

Ω

or 100

Ω

balanced interface. Connect to the DB15 female connector

located on the rear panel. Refer to Appendix A for information on the wiring
of the DB15 connector.

• 75

Ω

unbalanced E1 interface. Connect to the two coaxial connectors

designated OUT and IN.

NOTE

Only one of the two E1 connection possibilities may be used: never
connect cables to both the coaxial connectors and to the DB15
connector at the same time.

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Summary of Contents for MT610A-SM

Page 1: ... fax 724 746 0746 Mail order Black Box Corporation 1000 Park Drive Lawrence PA 15055 1018 Web site www blackbox com E mail info blackbox com JUNE 1998 MT610A ST MT611A ST MT610A SM MT611A SM MT610AE ST MT611AE ST MT610AE SM MT611AE SM MT613AE FC MT613A ST D48 T1 E1 Fiberoptic Line Driver T1 E1 FOLD OPTICAL AIS AIS ERR LOW ELECTRICAL TEST NORM REM LOC PWR T1 Fiber Optic Line Driver ...

Page 2: ...nt is operated in a commercial environment Operation of this equipment in a residential area is likely to cause interference in which case the user at his own expense will be required to take whatever measures may be necessary to correct the interference Changes or modifications not expressly approved by the party responsible for compliance could void the user s authority to operate the equipment ...

Page 3: ...icamente con carritos o pedestales que sean recomendados por el fabricante 7 El aparato eléctrico debe ser montado a la pared o al techo sólo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo eléctrico más allá a lo descrito en las instrucciones de operación Todo otro servicio deberá ser referido a personal de servicio calificado 9 El aparato eléc...

Page 4: ...iado únicamente de acuerdo a las recomendaciones del fabricante 15 En caso de existir una antena externa deberá ser localizada lejos de las lineas de energia 16 El cable de corriente deberá ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17 Cuidado debe ser tomado de tal manera que objectos liquidos no sean derramados sobre la cubierta u orificios de ventilación 1...

Page 5: ...rnal Switch Settings Information 12 3 4 2 Interface Jumper 12 3 4 3 Interface Grounding 13 3 4 4 Range 13 3 4 5 Optical Signaling 14 3 4 6 Electrical Chassis Grounding 14 3 5 Installation in 19 Racks 16 3 5 1 Installation of a Single Unit 16 3 5 2 Installation of Two Units 17 3 6 Preparation for Operation 19 3 6 1 Grounding 19 3 6 2 Power Connection 19 3 6 3 Fiberoptics Connection 21 3 6 4 E1 T1 C...

Page 6: ...5 T1 E1 FIBEROPTIC LINE DRIVER Appendix A Functional Interface Specifications 25 Appendix B DC Power Supply Connection 26 ...

Page 7: ...ptic 1300 nm MT611 models Multimode fiberoptic 850 nm MT613 models Single mode fiberoptic 1300 nm Data Rate T1 1 544 Mbps E1 2 048 Mbps Receiver Sensitivity For BER 10 9 38 dBm at 850 nm or 40 dBm at 1300 nm User Controls All internal 5 DIP switches for transmission range grounding and signal loss handling 1 Slide switch for interface Diagnostic Dry contact closure alarm on DB15 Pins 6 and 13 for ...

Page 8: ... m Temperature Tolerance 32 to 122 F 0 to 50 C Humidity Tolerance 0 to 90 noncondensing Enclosure Steel Power MT610 13A xx From internal power supply with cord 103 5 to 126 5 VAC 47 to 63 Hz MT610 13AE xx From internal power supply with cord 207 to 253 VAC 47 to 63 Hz MT610 13A D48 From internal power supply with cord 42 to 57 VDC at 60 mA Consumption 5 watts maximum Size 1 8 1U H x 7 W x 8 1 D 4 ...

Page 9: ...gnal The Line Driver provides three user selectable electrical interface options T1 for 100 terminated balanced signals E1 for 120 terminated balanced signals E1 for 75 terminated unbalanced signals Both a 15 pin connector and coaxial connectors are provided on the rear panel Internal jumpers enable the input output ports to be grounded or floating according to the application Diagnostic and alarm...

Page 10: ...rcome electrical link distortion The Line Driver then converts the T1 or E1 signals into an optical signal The optical signal is coupled to the fiberoptic media and transmitted via the optical link to the remote unit The optical output power is user selectable by a two position switch marked Range Its setting depends on the fiberoptic link A high sensitivity pre amplifier and an AGC Automatic Gain...

Page 11: ...lect the T1 interface by setting the INTERFACE switch to the left position 2 2 4 E1 INTERFACE The Line Driver s E1 interface fully complies with the applicable CCITT recommendations pulse mark and HDB 3 line coding per CCITT Rec G 823 Select the E1 interface by setting the INTERFACE switch to the middle position for balanced signals or to the right position for unbalanced signals ...

Page 12: ...setting procedures and additional information If you encounter a problem refer to Chapter 5 for troubleshooting instructions 3 2 What s Included in the Package 1 After unpacking the Line Driver inspect the unit for damage If you notice damage call Black Box immediately The package contains the following Line Driver Power cord This user s manual 2 Place the Line Driver securely on a clean surface 3...

Page 13: ...s and use them as levers to pull out the interior of the unit as a drawer 3 Identify the switches according to Figure 3 1 4 Install the switches in the desired positions refer to Section 3 5 5 Reinstall the Line Driver drawer 3 4 1 INTERNAL SWITCH SETTINGS INFORMATION Before installing the Line Driver set the internal switches according to your application that is electrical interface and optical ...

Page 14: ...ects the optical output power coupled to the fiber depending on the fiber core diameter Table 3 1 summarizes the optional output power available at the transmitter as a function of the wavelength and the type of fiber used Figure 3 1 Location of Switches and Jumpers FLOATING GROUNDED INPUT 2 FLOATING GROUNDED OUTPUT 3 SHORT LONG RANGE 1 ON OFF OPTICAL AIS XMT 5 6 NC 100 Ohm BAL T1 INTERFACE 4 120 ...

Page 15: ...G This jumper item 6 in Figure 3 1 disconnects NC or connects the chassis ground to electrical ground WARNING Setting the jumper to disconnect may render the Line Driver unsafe for connection to unprotected E1 T1 networks in some locations where permanent excessive voltages are present on the lines Table 3 1 Range Switch Position Switch Fiber Type Power coupled into fiber and maximum Position tran...

Page 16: ...INPUT Enables connection of the INPUT GROUNDED FLOATING Interface BNC shield to Chassis Ground FLOATING Grounding 3 OUTPUT Enables connection of the OUTPUT GROUNDED FLOATING Interface BNC shield to Chassis Ground FLOATING Grounding 4 INTERFACE Selects the electrical interface 100 Ω T1 T1 100 Ω DB15 155 V DB15 or 120 Ω E1 E1 120 Ω DB15 220 V DB15 75 Ω E1 BNC 5 OPTICAL AIS XMT In event of optical si...

Page 17: ... 5 Installation in 19 inch Racks The Line Driver can be installed in a 19 inch rack Its height is slightly less than 1U 1 75 and the width is slightly less than half of the available mounting width A rack adapter kit part number RM523 which contains one long bracket two short brackets and a rail is available for installation of either a single unit or two units side by side WARNING Disconnect the ...

Page 18: ...l 2 After attaching the brackets the unit is ready for installation in the 19 rack Fasten the brackets to the side rails of the 19 rack by means of four screws two per side included Figure 3 2 Installation of a Single Unit in a 19 Rack 3 5 2 INSTALLATION OF TWO UNITS The rack adapter components for two units include two long side rails one for each unit which slide one within the other to fasten t...

Page 19: ... left side of the other unit using the 4 screws and flat washers supplied The long side rails must be attached in opposing fashion with the narrow flange of the first rail opposite the wide flange of the second rail 2 Attach a short bracket to the other side of each unit using the 4 screws and flat washers supplied Figure 3 4 Installation of Two Units in a 19 Rack b ...

Page 20: ...ment dangerous Intentional interruption is prohibited 3 6 2 POWER CONNECTION Power should be supplied to the Line Driver through the standard power cable terminated by a standard 3 prong plug Connect the cable between the mains connector on the Line Driver rear panel and a standard grounded mains outlet WARNING The protective earth terminals of this instrument must be connected to the protective c...

Page 21: ...lied to the POWER connector When applying power first connect the plug of the power cable to the Line Driver POWER connector and then to the mains Figure 3 5 Line Driver Rear Panel Figure 3 6 Pinout of 48 VDC Power Jack OUT IN CHASS GND 48V RX TX 230V 0 1A T 250V OUT IN RX TX 100 115VAC 0 2A T 250V Line Fuse ...

Page 22: ...nsmit fiber must be connected to RX and the receive fiber to TX 3 6 4 E1 T1 CABLE CONNECTION E1 or T1 link connections depend on the selected interface 120 Ω or 100 Ω balanced interface Connect to the DB15 female connector located on the rear panel Refer to Appendix A for information on the wiring of the DB15 connector 75 Ω unbalanced E1 interface Connect to the two coaxial connectors designated O...

Page 23: ...es 2 Signal Loss Lights when optical signal is below 43 dBm or in some cases when there is no connection to G 703 port 4 2 Preparation for Operation General After being prepared for operation according to Chapter 3 the Line Driver normally operates unattended Operator intervention is only required when the Line Driver is set up for the first time or must be adapted to new operational requirements ...

Page 24: ...ration Indications During normal operation the SIGNAL LOSS indicator is off 3 Upon power on the SIGNAL LOSS indicator may light indicating that other communication equipment is not yet operating or that the optical signal is below 43 dBm The indicator will turn off as soon as all link equipment is operating 4 Power off The Line Driver is turned off by disconnecting its power Always disconnect the ...

Page 25: ...ce the Line Driver SIGNAL LOSS Incorrect optical signal a Make sure that the electrical indicator lights level received at the interface is connected receiver input b Make sure that the INTERFACE No signal is present at switch is set to the appropriate setting the electrical interface c Make sure that the fiberoptic cable is properly connected to the RX connector d Make sure that the remote unit p...

Page 26: ... allocation is described in Table A 1 Table A 1 DB15 and BNC Connector Pin No Designation Function BNC Connection 1 Send Data TIP Transmit Data A wire Center Line Driver input 9 Send Data RING Transmit Data B wire Shield Line Driver input 3 Receive Path TIP Receive Data A wire Center Line Driver output 11 Receive Path RING Receive Data B wire Shield 6 Alarm A 13 Alarm B ...

Page 27: ...age Polarity for the Power Supply Cable If your power supply cable already has a compatible connector just verify that the voltage polarity is as required If not connect the wires of your power supply cable to the supplied cable connector according to the voltage polarity shown below in Figures B 2 and B 3 Note that the solder side of the connector is shown Refer to the illustration of the cable c...

Page 28: ...7 T1 E1 FIBEROPTIC LINE DRIVER Figure B 3 Cable connector female voltage polarity for 24 or 48 VDC Figure B 4 Cable connector assembly 2 5 mm 20 mm For 24 or 48 VDC VDC INPUT Positive pole 1 3 2 GROUND 0 ...

Page 29: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1998 Black Box Corporation All rights reserved ...

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