background image

22

MODULAR FIBER CAMPUS DRIVER, MFCD PLUS

RS-232, RS-530 Interface Pin Description (DB25 Female Connector)

Pin #

Signal

1

FG (Frame Ground)

2

TD (Transmit Data)

3

RD (Receive Data)

4

RTS (Request to Send)

5

CTS (Clear to Send)

6

DSR (Data Set Ready)

7

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)

16

RD (Receive Data)

17

RC (Receive Timing)

18

LLB (Local Line Loop)

19

RTS/ (Request to Send)

20

DTR (Data Transfer Rate)

21

DL (Remote Digital Loop)

22

DSR/ (Data Set Ready)

23

DTR/ (Data Transfer Rate)

24

XTC (External Transmit Clock)

25

TM (Test Mode)

Содержание ME620A

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 26: ...1000 Park Drive Lawrence PA 15055 1018 724 746 5500 Fax 724 746 0746 Copyright 1998 Black Box Corporation All rights reserved...

Отзывы: