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screws2.cdr

Locating The Board Retaining Hardware

remove.cdr

Removing And Installing Circuit Boards

Installing The Loop Start Line Board

IMI89–266

Removing and Installing Circuit Boards in the Equipment Cabinet – 5

Содержание FXLST-04

Страница 1: ...ne wiring during a lightning storm Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface Use caution when installing or modifying telephone lines Avoid using a telephone other than a cordless type during an electrical stor...

Страница 2: ...in the FX Series cabinet you must install a static discharge wrist strap on your bare wrist and adjust it for a snug fit Be sure that the strap is touching bare skin and is not isolated by clothing Connect the wrist strap cord between the wrist strap and a AC or earth ground Unless a circuit board has a pre charge port on its front panel disconnect the AC power cord from the AC service outlet and ...

Страница 3: ...t already have a static safe work area you can create one by arranging a work area as detailed in the illustration Typical Earth Ground Static Wrist Strap ESD Protective Mat ESD Protective Mat ESD Protective Worksurface Static 2 Common Point Ground Creating a Static Safe Work Area Installing The Loop Start Line Board IMI89 266 Removing and Installing Circuit Boards in the Equipment Cabinet 3 ...

Страница 4: ...ocate the proper board slot on FX Series systems the loop start line boards connect to any universal slot 5 If you are removing or installing the line board in an operating system connect the free end of the precharge cord that you installed in step 1 to the precharge jack on the line board 6 If you are removing line boards from the cabinet remove the retaining hardware pull the boards toward you ...

Страница 5: ...s2 cdr Locating The Board Retaining Hardware remove cdr Removing And Installing Circuit Boards Installing The Loop Start Line Board IMI89 266 Removing and Installing Circuit Boards in the Equipment Cabinet 5 ...

Страница 6: ... group and place calls trunk to trunk calling may experience low audio levels on their calls due to the normal line resistance of CO lines Low audio level is usually only noticeable on long line loops If signal loss is a problem at your site try adding a line amplifier repeater in the DISA line Comdial does not recommend DISA for use on loop start lines without disconnect supervision While DISA wi...

Страница 7: ... Blue 11 36 21 Signal Path Tip 11 Blue Black 11 22 Ring Black Orange 12 37 23 Signal Path Tip 12 Orange Black 12 24 Ring Black Green 13 38 25 Signal Path Tip 13 Green Black 13 26 Ring Black Brown 14 39 27 Signal Path Tip 14 Brown Black 14 28 Ring Black Slate 15 40 29 Signal Path Tip 15 Slate Black 15 30 Ring Yellow Blue 16 41 31 Signal Path Tip 16 Blue Yellow 16 32 Ring Yellow Orange 17 42 33 Oran...

Страница 8: ...uires 24 timing circuits In the FX Series each universal slot provides 32 timing circuits Because of this timing circuit provision of each slot you can place any station or line board at any slot location with no restrictions Adding boards without renumbering If you install or relocate a station or line board this board does not operate until you take appropriate programming action If you use an a...

Страница 9: ... jack and use it to provide basic communications capability until the AC power to the system is restored Pair 25 pin numbers 50 and 25 clip terminals 49 and 50 on the line board connector jack provides the power failure connection 37 38 39 40 41 42 43 44 45 46 47 48 49 50 Power Failure Terminals on Line Board Connection Block Pair 25 Pins 50 and 25 Clip Terminals 49 and 50 Typical Industry Standar...

Страница 10: ...umbers 49 and 24 clip terminals 47 and 48 and is associated with line 2 of that line board Charlottesville Virginia 22901 2829 R World Wide Web http www comdial com C E R T I F I E D I S O 9 0 0 1 Accredited by the Dutch Council for Accreditation for certification and registration activities CERTIFICATION Comdial s Quality Management System Is Certified To The ISO 9001 Standard A C C R R E I S T R...

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