Digitus Biometrics db Nexus II Installation Manual Download Page 10 | Manualshive

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Models: db Nexus II, Nexus III Digitus Biometrics, Inc. 2011

Page 10 of 20

Fail Secure Locks (24V)

•

A fail secure lock needs supplying with a 24V supply to open the lock. The Digitus controller does not supply a
24V output. To use a 24V lock a separate power supply will be required. Wire a 24V Fail Safe lock as shown in

the diagram:

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Summary of Contents for db Nexus II

Page 1: ...dbNEXUS V3 0 0 Installation Manual ...

Page 2: ...d Unit to the Control Unit 6 Connecting the Power Source to the Control Unit 7 Connecting an Electric Strike to the Control Unit 8 Fail Safe Locks and Magnetic Locks 12V 8 Fail Secure Locks 12V 9 Fail Safe Locks and Magnetic Locks 24V 9 Fail Secure Locks 24V 10 Request to Exit RTE Switch 11 Door Sensor 12 Fire Panel Integration 14 Wiegand Output 26 bit protocol 17 Powering Up the Unit 19 ...

Page 3: ...to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to which the receiver is connected C...

Page 4: ...t double check that the cable passageway through the wall is clear from obstruction e g pipes cables etc Locate the back section of the head unit or use the template provided in Appendix I using a spirit level to ensure that the plate is level Inscribe the 4 screw holes and cable passageway bottom right with a pencil on the wall Drill and plug where necessary the wall where the 4 mounting screws a...

Page 5: ...e maximum distance between the head unit and the controller is 500 feet In order to make the process of mounting the control unit and connecting it to the head unit as easy as possible we recommend removing the 12v battery Locate a suitable flat surface on the inside of the protected door Ensure that the unit is level and inscribe the 4 screw holes with a pencil on the wall Drill and anchor the wa...

Page 6: ...of the head unit Leave approximately 8 200mm of cable spare at each end to allow for stripping the wires and connection to the terminal blocks We also recommend allowing an extra 12 to 18 of cable to be left as a service loop behind the surface you are mounting to The cable should be wired as shown below The actual colors are not important but each pair of wires must be connected as shown in the d...

Page 7: ...to the control unit ONLY the transformer supplied by Digitus should be used to power the control unit or an exact equivalent Strip approximately 6mm of plastic sheath from each cable to the power supply and connect to the appropriate terminal blocks checking that all wires are securely fastened If you previously removed the battery as recommended please reinstall it and fasten securely Reconnect t...

Page 8: ...ed determines how the control unit is wired Fail Safe Locks and Magnetic Locks 12V A fail safe or magnetic lock is permanently supplied with a 12V supply to keep the lock closed Connect the Ground Lead of the lock to a terminal labeled 0V Connect the Live Lead of the lock to the terminal labeled Door Solenoid Connect a link between Link and NC and a link between COM and 12V ...

Page 9: ...nect the Live Lead of the lock to the terminal labeled Door Solenoid Connect a link between Link and NC and a link between COM and 12V Fail Safe Locks and Magnetic Locks 24V A fail safe or magnetic lock is permanently supplied with a 24V supply to keep the lock closed The Digitus controller does not supply a 24V output To use a 24V lock a separate power supply will be required Wire a 24V Fail Safe...

Page 10: ... 10 of 20 Fail Secure Locks 24V A fail secure lock needs supplying with a 24V supply to open the lock The Digitus controller does not supply a 24V output To use a 24V lock a separate power supply will be required Wire a 24V Fail Safe lock as shown in the diagram ...

Page 11: ...1 of 20 Request to Exit RTE Switch The control unit has a built in delay for the RTE switch Connect a push switch as shown in the diagram below The exit delay is set through the PC software on a networked unit or through the menus on the head unit for a standalone ...

Page 12: ... door sensor as shown below The door sensor circuit provides a feature to work with a special type of door sensor that is tamper proof This prevents an internal security breach where someone with authorized access to an area could potentially short out the contacts on the door sensor If used with the anti tamper door sensors the jumper of SW SEL JMP1 must be set as follows ...

Page 13: ...Models db Nexus II Nexus III Digitus Biometrics Inc 2011 Page 13 of 20 If the door sensor is not being used the link must remain in place as shown below ...

Page 14: ... the fire override inputs the unit must be reset manually by pressing the reset button on the control unit Doors will remain unlocked until the unit has been reset The diagram shows how to connect a control unit to a fire panel The unit can be connect to either a normally open or normally closed set on contacts as shown below Only remove the link between 0V and NC is the system is wired as follows...

Page 15: ...Models db Nexus II Nexus III Digitus Biometrics Inc 2011 Page 15 of 20 If the fire panel integration is not being used the link must remain in place as shown below ...

Page 16: ...e of the following conditions happen the 3rd party system will be alerted The following will send an alarm alert Tamper detected on the head unit A forced door A door being propped open The duress feature being activate A tamper detected on the door sensor circuit when used in conjunction with an anti tamper door sensor The alarm relay is connected as per the diagram below Alternatively the alarm ...

Page 17: ...s Inc 2011 Page 17 of 20 Wiegand Output 26 bit protocol The db Nexus controller offers a 26 bit Wiegand output allowing seamless integration into 3rd party Access Control System The diagram shows how to connect a control unit to a 3rd party system ...

Page 18: ...Models db Nexus II Nexus III Digitus Biometrics Inc 2011 Page 18 of 20 Network Connection If the unit is networked connect the RJ 45 plug as shown below ...

Page 19: ... on The unit should now power up If not unplug the unit and check all wiring The buzzer on the control unit should sound for 1 second Check the LCD display If the display reads LCD CONTRAST 0 9 0 DONE the unit is OK If the unit does not get to this stage or displays a different message check that the cable between the head unit and control unit has been wired correctly ...

Page 20: ...trics Inc 2011 Page 20 of 20 Digitus Biometrics Inc 2 East Bryan Street Ste 502 Savannah GA 31401 USA Phone 912 231 8175 Fax 912 629 9478 www digitus biometrics com support digitus biometrics com Specifications subject to change without notice ...

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