User Manual
Contents
1. When the series is powered together with other devices cameras and etc by a single 24VAC power supply please make sure that the related device has a full wave bridge rectifier circuit PANEL DESCRIPTION N3751T R 1D1B amp N3551T R 1D1B Power on indicator red Optical link loss indicator red Optical port FC or ST Chassis GND Earthing for surge protection Video present indicator green Video input output 750hm 1Vp p 9 pin terminal block connector RS232 data interface CH 1 1 Out 2 GND 3 In 4 GND 5 GND Data output indicator green Data input indicator green DIP selectable RS422 RS485 data interface CH 2 See table 1 for detailed DIP settings Data active indicator green ON O oO FR C PDP Data active indicator green Figure 1 N3751T R 1D1B N3551T R 1D1B PANEL DESCRIPTION N3751T R 2D 8 N3551T R 2D Power on indicator red Optical link loss indicator red Optical port FC or ST Chassis GND Earthing for surge protection Video present indicator green Video input output 75 1Vp p DIP selectable RS422 RS485 data interface CH 1 See table 1 for detailed DIP settings 9 pin terminal block connector Data active indicator green Data active indicator green DIP selectable RS422 RS485 data interface CH 2 See table 1 for detailed DIP settings Data active indicator green2. s 1 sg 1200 1200 termination 1 terminatio termination termination 4 Receiver resistor resistor resistor resistor fiber fiber fiber fiber 1 2 3 4 Transmitter Figure 15 Code distributor diagram 21 CABLE DIAMETER CALCULATION AND LIGHTNING 8 SURGE PROTECTION Relation between 24VAC Cable Diameter and Transmission Distance In general the maximum allowable voltage loss rate is 10 for AC powered devices The table below shows the relationship between transmission power and maximum transmission distance under a certain specified cable diameter on condition that the 24VAC voltage loss rate is below 10 According to the table if a device rated at 50W is installed 17 meter away from the transformer the minimum cable diameter shall be 0 8000mm A lower diameter value tends to cause voltage loss and even system instability 0 8000 1 000 1 250 2 000 94 28 70 21 56 17 47 14 40 12 35 10 31 9 28 8 23 7 21 6 20 6 18 5 17 5 16 4 15 4 14 4 o 6 14 4 22 Lightning amp Surge Protection The product adopts multi level anti lightning and anti surge technology integrated with gas discharge tube power resistor and TVS tube The powerful lightning and surge protection barrier effectively avoids product damage caused by various pulse signals with power below including instantaneous
3. GND Data input indicator green 14 15 RS232 data interface CH 2 16 16 Out E Data output indicator green 174 GND 18 In 18 19 GND da Data input indicator green 204 GND O o Figure 6 N3751T R 2B IP amp N3551T R 2B IP 11 DIP SWITCHES AND JUMPERS SETTINGS Location of DIP switches For 1D1B sub series the DIP switches SW2 are located on the board as shown in figure 7 SW2 3 and SW2 4 set the data format for CH2 D data channel SW2 1 and SW2 2 are factory default setting please leave them as they were For 2D sub series the one DIP switches SW2 are located on the board see figure 7 SW1 1 and SW1 2 set the data format for data channel SW1 3 and SW1 4 set the data format for CH2 data channel For 2B sub series the DIP switches are factory default setting Please leave them as they were CO Oo A ar A m wi A Figure 7 Location of on board DIP switch Setting line termination resistor A multipoint bus architecture requires termination at both ends of the bus line to restrain signal reflection The termination resistors must be within 20 percent of the characteristic impedance of the cable and can vary from 9002 to 120 For IDIB sub series jumper JP8 is used to connect disconnect 12002 termination resistor Attach JP8 to connect a 1200 termination for CH2 they are identical on both transmitter and receiver for speci
4. Note 1 The data format for both channels can be Manchester Biphase RS422 or RS485 Refer to Table 1 Page 13 for detailed DIP settings and pin definitions 2 Please refer to termination resistor Page 12 for detailed settings of termination resistor 14 TYPICAL SYSTEM CONFIGURATION Two video channels with two RS232 N3751R N3751T yo A T 7 A 4 T OD ABON 0 00 BK ON Figure 9 Two video channels with two RS232 Note Please refer to related panel description 2B for detailed pin definitions 15 TYPICAL SYSTEM CONFIGURATION Two video channels with one DIP selectable data and one RS232 N3751T N3751R OA R on u Figure 10 Two video channels with one DIP selectable data and one RS232 Note 1 Please refer to related panel description 1D1B for the pin definitions of CHI 2 The date selectable for CH2 is RS422 Manchester Biphase or RS485 Please refer to Table Page 13 for detailed data format settings and pin definitions for CH2 3 Please refer to termination resistor Page 12 for detailed settings of termination resistor 16 DAISY CHAIN We can use daisy chain connection to simplify the wiring and control
5. o Figure 4 N3751T R 1D1B IP amp N3551T R 1D1B IP PANEL DESCRIPTION N3751T R 2D IP N3551T R 2D IP Power on indicator red Optical link loss indicator red Optical port FC or ST Ethernet port Chassis GND Earthing for surge protection Video present indicator green Video input output 75ohm 1Vp p 20 pin terminal block connector 1 2 3 4 5 6 7 8 9 DIP selectable RS422 RS485 data interface CH 1 See table 1 for detailed DIP settings Data active indicator green N Co Data active indicator green A al DIP selectable RS422 RS485 data interface CH 2 See table 1 for detailed DIP settings Data active indicator green N 00 Data active indicator green O N o Figure 5 N3751T R 2D IP amp N3551T R 2D IP 10 PANEL DESCRIPTION N3751T R 2B IP 8 N3551T R 2B IP Power on indicator red Optical link loss indicator red Optical port FC or ST Chassis GND Earthing for surge protection Ethernet port O Video present indicator green 2 3 Video input output 750hm 1Vp p 4 gt e O 7 8 20 pin terminal block connector 9 RS232 data interface CH 1 10 11 Out 111 12 GND 1 Data output indicator green 13 In 2 141 GND 13 15
6. all servicing to qualified personnel If you require information during installation of this product or 1f service seems necessary contact the local suppliers or Infinova at 1 732 355 9100 in 51 Stouts Lane Monmouth Junction NJ 08852 U S A You must obtain a Return Authorization Number and shipping instructions before returning any product for service Our obligation under this warranty is limited only to the repair or replacement of any of our products provided that products are used within the specified ratings and applications and that products are applied in accordance with good engineering practices and that products are proved by our examination to be defective This warranty does not extend to any Infinova products which have been subject to acts of accident misuse abuse neglect improper application or installation improper operation or maintenance connection to an improper voltage supply or to materials which have been altered or repaired outside an authorized Infinova factory repair center Information provided by Infinova is accurate and reliable However no responsibility is assumed by Infinova for its use nor for any infringements of other rights of third parties which may result from its use No license is granted by implications or otherwise under any patent or patent rights of Infinova N WARNING TO REDUCE THE RISK OF FIRE OR SHOCK HAZARD DO NOT EXPOSE THIS PRODUCT TO RAIN OR MOISTURE DO NOT LOOK INTO OPTICAL
7. lightning surge and static However for complicated outdoor environment refer to instruction below for lightning and surge protection The product features with dedicated earth wire which must be firmly grounded As for surveillance sites beyond the effective protection scope it s necessary to erect independent lightening rods to protect the security devices It s recommended to separate the lightning rod from the mounting pole placing the rod on an independent pole as shown in the figure below If the product has to be installed on the same pole or pedestal for lightning rod there should be strict insulation between the video cable BNC terminal power cable control cable and the standing pole of the lightning rod For suburb and rural areas it s recommended to adopt direct burial for the transmission cables Overhead wiring is prohibited because it s more likely to encounter lightning strike Use shielded cables or thread the cables through metal tubes for burial thus to ensure the electric connection to the metal tube In case it s difficult to thread the cable through the tube all the way it s acceptable to use tube threaded cables only at both ends of the transmission line yet the length in burial should be no less than 15 meters The cable sheath and the tube should be connected to the lightning proof grounding device Additional high power lightning proof equipment and lightning rods should be installed for strong thunderstorm or
8. 1T i N3751R RS232 Ethernet Signal Ethernet Signal ORDERING INFORMATION Use the configuration chart below to select the options available for this product N3 51MIA 1D1B IP M Fiber Type Network Manage Product Type x 35 Multimode with management T Transmitter A 25km 37 Singlemode w o management Receiver 50km C 75km Ethernet Function IP with Ethernet Null w o Ethernet Enclosure M standalone module H card unit Data format 2B Two RS232 2D Two DIP selectable data 1D1B One RS232 and one DIP selectable data Note 1 The transmission distance category is valid for single mode product only For all multi mode products there are only TA and RA models and the transmission distance is 2km For single mode products if the transmission distance is within 15km the letter standing for distance shall be omitted e g N3751T R 1D1B IP 2 The product with IP model number indicates it has Ethernet function INSTALLATION Installation of video and data interface To install the apparatus it is necessary to allow enough space to accommodate the bend radius of the optical cable connected to it The transceiver requires as short as practical two BNC terminated coaxial cables to input output the video signal Data input output uses a 9 pin terminal block connector Installation of card unit Push the card unit along the guide rails not in spaces between the rails There is an Infinova logo on t
9. Data active indicator green O OC KR OQ NM a Figure 2 N3751T R 2D amp N3551T R 2D PANEL DESCRIPTION Power on indicator red Optical link loss indicator red Chassis GND Earthing for surge protection Video present indicator green Video input output 75ohm 1Vp p RS232 data interface CH 1 1 Out 2 GND 3 In 4 GND 5 GND RS232 data interface CH 2 6 Out 7H GND 8 In 9 GND Figure 3 N3751T R 2B amp N3551T R 2B N3751T R 2B amp N3551T R 2B oon oD oO KR Q M a Optical port FC or ST 9 pin terminal block connector Data output indicator green Data input indicator green Data output indicator green Data input indicator green PANEL DESCRIPTION N3751T R 1D1B IP N3551T R 1D1B IP Power on indicator red Optical link loss indicator red Optical port FC or ST Ethernet port Chassis GND Earthing for surge protection 1 Video present indicator green 2 3 Video input output 750hm 1Vp p 4 5 6 7 8 20 pin terminal block connector 9 10 RS232 data interface CH 1 11 1 Out Data output indicator green 2 GND 12 3 In 13 4 GND Data input indicator green 5 GND 14 0 DIP selectable RS422 RS485 data interface CH 2 See table 1 for detailed DIP settings Data active indicator green a N Data active indicator green O N
10. Infinova N3751 N3551 SERIES Digital Video Channels with Two DIP Selectable Data and Ethernet Signal User Manual Infinova Contents SERVICE NO TIGA ld 1 PRODUCT DESCRIPTION sra a east 2 ORDERING TNFORMATIIN en qo sheds bos 3 INSTAFERTION ie E 3 POWER UP PN sense seele aa End 5 PANEEDESERTETION 2 2 2020 een 6 N3JOVDBSIDIBIAINSSSOTI RSIDI B secti aa nen 6 N375LER 2D amp NS TR 2D ae Bu I a aeria 7 ae is 8 N3751T R 1D1B IP amp N3551T R IDIBAP ot uero on nr eher ea tene tus 9 Nado LI RS2D IP NS ana ds 10 N375TLT R 2B IP amp N355 LIEJR 2BIP es ea 11 DIP SSWITCHES AND JUMPERS SETTINGS tesi teeth cit 12 TYPICALSYS TEM CONFIGURATION pri 14 Two video channels with two DIP selectable 14 Two video channels with two RS232 ed AGE saga neh aa a Ga a an an aa 15 Two video channels with DIP selectable data and one RS232 16 DAISY CHAIN iran a oia 17 SURGE PROTEC TON Mur 18 TRANSMISSION REPEATER ga n 19 CONTACTELEOSURESIGNAD iu 20 CODE DISTRIBUTOR sr en ea ea 21 CABLE DIAMETER CALCULATION AND LIGHTNING amp SURGE PROTECTION22 SERVICE NOTICE The installation of this product should be made by qualified personnel Do not attempt to service this product yourself Refer
11. PORTS WITH POWER ON PRODUCT DESCRIPTION Description The N375land N3551 series provide high quality reliable transmission of two digitally encoded composite video channels with either two DIP selectable data 2D or one RS232 and one DIP selectable data 1D1B and Ethernet signals over one optical fiber The modules are compatible with PAL SECAM and NTSC EIA video signal Data interface supports RS232 RS422 Manchester Biphase and 2 wire 4 wire RS485 Plug and play design ensures ease of installation requiring no electrical or optical adjustments Each transmitter or receiver incorporates status indicators for monitoring of proper system operation The modules are available in either standalone or card unit versions Standalone module Card unit standalone module Card unit The N3751 series are compatible with 9 125 micron single mode fibers The N3551 series are compatible with 50 125 or 62 5 125 micron multimode fibers Camera end transmitter N3751T is compatible with monitor end receiver N3751R Camera end transmitter N3551T is compatible with monitor end receiver N3551R Related product optional N3910 000X 19 1U fan assembly unit N3932 Lightning surge protection card for one video channel and one data channel N3951 Fiber optical transmission repeater N3952 8 channel contact closure signals collector N3954 Control code distributor System Diagram Transmitter Receiver 2V RS422 485 RS422 485 N375
12. fied data format See table 1 below for more details 12 For 2D sub series there are 2 jumpers JP6 JP8 on board for setting line termination for their related data channel Attach JP6 JP8 to connect a 1200 termination for CHI CH2 data channel respectively Otherwise detach JP6 JP8 to disconnect 12002 termination resistor See figure 5 for the specific position of JP6 and 1 8 Setting data format Please refer to Table 1 for detailed switch settings and pin definitions for each channel Full duplex RS485 RS422 Manchester Biphase Half duplex RS485 two channels Return RS422 Manchester Biphase two channels Table 1 DIPSWITCH SETTING REFERENCE Note 1 In table 1 pin represents the pin with MINIMUM number of each data channel pin 5 represents the pin with MAXIMUM number of each data channel For products without IP function users only need to refer to the definition of Pin 1 to Pin 4 2 In table 1 DIP 1 and DIP 2 represent the DIP with SMALLER number and the DIP with LARGER number of the two configuring DIPs respectively 13 TYPICAL SYSTEM CONFIGURATION Two video channels with two DIP selectable data Neer L N378IR ___ Figure 8 Two video channels with two DIP selectable data
13. he front panel indicating the proper orientation Press hard to make a good connection to motherboard loud snap indicates firm connection There are two captive screws on the front panel that can fasten the card unit to the subrack They must be locked by hand in a clockwise manner do not over tighten see figure right below fasten Full load of N3910 18S There are 18 slots on N3910 18S Besides N3910 18S there are N3910 2S N3910 3S N3910 4S N3910 6W and N3910 15R optional There are 2 slot on N3910 2S 3 slots on N3910 3S 4 slots on N3910 4S 6 slots on N3910 6W and 15 slots on N3910 15R respectively WARNING A FULL LOAD OF N3910 I5R AND N3910 18S REQUIRES FORCED AIR COOLING IN THE RACK TO AVOID OVER HEATING OF CARD UNITS WHENEVER POSSIBLE INSTALL IN EVERY OTHER SUBRACK Infinova FIBER OPTIC TRANSMISSION SYSTEM INFINOVA Monmouth Junction NJ USA Forced air cooling with N3910 000X fan assembly POWER SUPPLY Power supply for card unit The unit is powered by a plug in power supply that is provided with the appropriate desk chassis or EIA 19 rack Power supply for stand alone module The card unit can be converted into a standalone module when installing into a 2 slot chassis N3910 2S that is powered by a plug in 24VAC 830mA N3921 24A 1 for 110V N3921 24A 2 for 230V power supply Plug the wires into the connector fasten the screws to make a firm connection N3921 power supply Connection diagram Note
14. high induced voltage areas such as high voltage substation The lightning protection and grounding for outdoor devices and wires should be designed in line with the actual protection requirement national standards and industrial standards The system should perform equipotential grounding by streaming shielding clamping and earthing The grounding device must meet anti interference and electric safety requirements There should be no short circuiting or hybrid junction between the device and the strong grid Make sure there s a reliable grounding system with grounding resistance below 4Q below 10 for high soil resistivity regions The cross sectional area of the earthing conductor should be no less than 25mm TS Front device for surveillance system Mounting pole for front device Separated layout for the lightning rod and the standing pole 23 Infinova V2 3 1307
15. ies is used between transmitter and receiver to extend the transmission distance of fiber optical system It magnifies the optical signal received from transmitter and sends it to receiver By using a N3951 the transmission distance of the system 15 doubled Typical application connection N3751T N3951 N3751R Figure 13 Transmission repeater 19 CONTACT CLOSURE SIGNAL The N3952 series 1s a contact closure signals collector This series can convert the 8 channel input contact closure signals to one RS232 RS422 RS485 data and convert input RS232 RS422 RS485 data to 8 channel contact closure signals It can transmit the contact closure signals over a long distance when connecting with fiber optical transmission system The number of contact closure channels is default setting so is the data format Typical application connection N3952T N3751T N3751R N3952R Alarm Ini GND Alarm In2 GND Alarm Ing GND Alarm Ind GND Alarm In5 Remote Sensor GND Alarm Ing GND Alarm In7 GND Alarm Ing GND Figure 14 Contact closure signal connection 20 CODE DISTRIBUTOR The N3954 15 a code distributor designed for star connection where the code source is too far away from the video receiver and overload or reflection occurs
16. ling of remote domes The control signal is connected to all of the receivers and transmitted to all of the transmitters through fiber optic respectively In the remote site the specified dome will act as the control signal instructs The number of video receiver daisy chained depends on the driving capability of code source System Diagram 120 termination Receiver resistor fiber 2 fiber fiber 2 Transmitter Figure 11 Daisy chain diagram Note There should be a 1200 termination resistor on the final receiver for restraining signal reflection Please pay attention to it 17 SURGE PROTECTON Surge protection circuits are implemented to protect Infinova s products against transient surge and over voltage Over voltage can be caused by AC power or lightning flash disturbances that are induced or conducted onto the data line It s important that good earthing or grounding be applied to ensure the proper function of surge protection circuit For reinforced protection N3932 are strongly recommended to protect your investment Typical application connection N3932 N3751T N3751R PWR PWR A Fiber UMAK 4 Figure 12 Lightning surge protection 18 TRANSMISSION REPEATER The N3951 ser
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