Black Box ME620A Manual Download Page 25

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MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

G.703 Interface Pin Assignment (RJ-45 8-Pin Modular)

Pin #

Signal

RD+ (Receive Data Tip)

RD- (Receive Data Ring)

Not Used

TD- (Transmit Data Ring)

TD+ (Transmit Data Tip)

Not Used

8 Not

Used

Summary of Contents for ME620A

Page 1: ...SUPPORT INFORMATION Order toll free in the U S Call 877 877 BBOX outside U S call 724 746 5500 FREE technical support 24 hours a day 7 days a week Call 724 746 5500 or fax 724 746 0746 Mailing addres...

Page 2: ...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 ap...

Page 3: ...te 7 El aparato el ctrico debe ser montado a la pared o al techo s lo como sea recomendado por el fabricante 8 Servicio El usuario no debe intentar dar servicio al equipo el ctrico m s all a lo descri...

Page 4: ...so de existir una antena externa deber ser localizada lejos de las lineas de energia 16 El cable de corriente deber ser desconectado del cuando el equipo no sea usado por un largo periodo de tiempo 17...

Page 5: ...4 MODULAR FIBER CAMPUS DRIVER MFCD PLUS TRADEMARKS The trademarks mentioned in this manual are the sole property of their owners...

Page 6: ...Connection to the Fiber Interface 13 4 2 Connection to the Serial Port 14 4 2 1 Changing Modules 14 4 2 2 Connection to a DTE Device 15 4 2 3 Connection to a DCE Device 15 4 2 4 Re configuring the X 2...

Page 7: ...nectors 1 Fiber ST Link Budget 12 dB 62 5 micron 8 dB 50 0 micron Diagnostics V 54 Compliant Local Analog Loopback and Remote Digital Loopback bit error rate pattern Fiber Modes Single 50 or 62 5 micr...

Page 8: ...nnections are made using an ST interface The Campus Drivers also incorporate V 54 compliant local and remote loopback test modes that are activated by a convenient front panel switch LED status indica...

Page 9: ...8 MODULAR FIBER CAMPUS DRIVER MFCD PLUS V 54 compliant local and remote digital loopback tests 8 front panel LED status indicators Available with ST fiber connectors Made in the U S A...

Page 10: ...essible you don t have to open the case to configure the unit Figure 3 1 Underside of the Campus Driver showing the location of the DIP switches Configuration Switch S1 The switches shown in Figure 3...

Page 11: ...E621A or ME620A rates SWITCH S1 1 THROUGH S1 4 MODEL ME621A ASYNC SYNC DATA RATE On ME621A Switches S1 1 S1 2 S1 3 and S1 4 set two parameters synchronous or asynchronous data rate and the maximum tra...

Page 12: ...4 8 Off Off On Off 28 8 1 5 2 4 Off Off On On 38 4 3 0 4 8 On On Off On 48 0 3 0 4 8 Off On Off Off 56 0 1 5 2 4 Off Off Off On 64 0 3 0 4 8 Off On On Off 72 0 1 5 2 4 Off Off Off Off 128 0 1 5 4 8 On...

Page 13: ...s disabled the DL test can only be initiated by the front panel switch If DTE control is not available set switch S1 7 to the Off position S1 7 Setting Description On Enabled Respond to DL requests fr...

Page 14: ...bps async The ME620A also supports distances up to 3 miles 4 8 km but at rates up to 256 kbps sync or 38 4 kbps async Figure 4 1 shows the position of the interface connectors on the ME621A or ME620A...

Page 15: ...hipped to you without any modules installed The modules mentioned on page 7 are ordered separately If you need to install one of these Modules follow these steps Removing an Existing Module 1 Turn the...

Page 16: ...d turn the screws clockwise to tighten 4 2 2 CONNECTION TO A DTE DEVICE The serial port on most interface modules all except the X 21 module is hard wired as DCE Therefore these modules want to plug i...

Page 17: ...it 180 then plugging the strap back into the socket You will see that the DCE DTE arrows now point in the opposite directions showing the new configuration of the X 21 port Reinstall the module accord...

Page 18: ...feature eight front panel LEDs that monitor power the DTE signals network connection and test modes Figure 5 1 shows the front panel location of each LED Following Figure 5 1 is a description of each...

Page 19: ...s well as the twisted pair link between them local loopback LAL and remote digital loopback DL 5 3 1 LOCAL ANALOG LOOPBACK The Local Analog Loopback LAL test checks the operation of the local Campus D...

Page 20: ...t procedures for the data terminal Also check the interface cable between the terminal and the Campus Driver 5 3 2 REMOTE DIGITAL LOOPBACK The Remote Digital Loopback test checks the performance of bo...

Page 21: ...CD PLUS 3 If the BER test equipment indicates a fault and the Local Analog Loopback test was successful for both Campus Drivers you may have a problem with the line between the units You should inspec...

Page 22: ...to Send D CTS Clear to Send E DSR Data Set Ready F CD Carrier Detect H DTR Data Transfer Ready L LLB Local Line Loop M TM Test Mode N DL Remote Digital Loop P TD Transmit Data R RD Receive Data S TD T...

Page 23: ...SGND Signal Ground 8 CD Carrier Detect 9 RC Receive Timing B 10 CD Carrier Detect B 11 XTC External Transmit Clock 12 TC Test Control B 13 CTS Clear to Send 14 TD Transmit Data B 15 TC Test Control A...

Page 24: ...tor Pin Signal 1 Frame Ground 2 T Transmit Data A 3 C Control A 4 R Receive Data A 5 I Indication A 6 S Signal Element Timing A 7 BT Byte Timing A 8 SGND Signal Ground 9 T Transmit Data B 10 C Control...

Page 25: ...MPUS DRIVER MFCD PLUS G 703 Interface Pin Assignment RJ 45 8 Pin Modular Pin Signal 1 RD Receive Data Tip 2 RD Receive Data Ring 3 Not Used 4 TD Transmit Data Ring 5 TD Transmit Data Tip 6 Not Used 7...