Intuicom Communicator, User Manual

Page 1: ...Intuicom Inc 1880 South Flatiron Court Boulder CO 80301 303 449 4330 www intuicom com Intuicom CommunicatorTM Wireless Data Transceiver User Manual ...

Page 2: ...without notice Unless otherwise agreed to in writing Intuicom assumes no responsibility or liability for the use of this manual or for the infringement of any copyright or other proprietary right and Intuicom shall deem nothing contained in this manual a warranty or guarantee Intuicom WiGate Intuicom CommunicatorTM and Intuicom SmartGPS TrackerTM SurveyorTM are Trademarks of Intuicom Inc Other pro...

Page 3: ... cause undesired operation This device must be operated as supplied by Intuicom Inc Any changes or modifications made to the device without the express written approval of Intuicom Inc may void the user s authority to operate the device This product is licensed by The United States Diversion contrary to U S law is prohibited Shipment or re export of this product outside The United States may requi...

Page 4: ...ter Switchable 7 4 7 1 Using Mode 6 to call a transceiver not listed in the Call Book 9 4 8 7 Point to Multipoint Repeater 9 5 Multipoint Operation 10 5 1 Theory of Operation 10 5 2 Installing Multipoint Systems 10 5 3 Overlapping Multipoint Systems 11 5 4 Setting Multipoint Parameters 11 5 4 1 0 Number Repeaters 11 5 4 2 1 Master Packet Repeat 11 5 4 3 2 Max Slave Retry 13 5 4 4 3 Retry Odds 13 5...

Page 5: ... Edit Radio Transmission Characteristics 25 8 2 FreqKey 26 8 2 1 900MHz 26 8 2 2 2 4GHz 28 8 3 1 Max Packet Size and 2 Min Packet Size 29 8 4 3 Xmit Rate 32 8 5 4 RF Data Rate 32 8 6 5 RF Xmit Power 33 8 7 6 Slave Security 33 8 8 7 RTS to CTS 33 8 9 8 Retry Time Out 34 8 10 9 Lowpower Mode 35 9 Radio Statistics 37 9 1 Average Noise Level 37 9 2 Average Signal Level 37 9 3 Overall Rcv Rate 38 9 4 N...

Page 6: ...Pin Assignments 45 14 DGRO Small Footprint Series Pinout 47 15 DGR 115W Waterproof Enclosure Pinout 48 16 Data Communications Settings 49 17 Establishing Data Communication Links 50 18 Other Settings 54 18 1 Baud Rate 54 18 2 Setup Timeout 54 19 Technical Specifications 55 20 Troubleshooting 57 21 Antenna Installation Drawing 60 22 Warranty Statement 61 ...

Page 7: ...nicator Operation Mode Menu 5 Figure 5 1 Multipoint Parameters 13 Figure 5 2 Multipoint Subnet Diagram 18 Figure 6 1 Baud Rate Word Length Modbus 20 Figure 7 1 Call Book Menu 23 Figure 8 1 Radio Parameters Menu 25 Figure 8 2 Hop Table Parameters 26 Figure 8 3 Frequency Key and Hop Table Options 2 4 Ghz 29 Figure 15 1 Waterproof Connector 48 ...

Page 8: ...en a pair of Communicators just received from the factory 1 Set the baud rate on each transceiver to match the baud rate of the instrument to which it is attached Please note that when you are setting the transceiver s baud rate you are setting its RS232 data rate which must match the rate for the instrument to which it is attached This in turn means that the baud rate does not have to be on the s...

Page 9: ...device to which the transceiver will be connected 3 Edit Radio Transmission Characteristics Set FreqKey Max Packet Size Min Packet Size and RF Data Rate to identical settings on every radio to be used in the network It is always a good idea to set the FreqKey Max Packet Size Min Packet Size to values other than the factory defaults 4 Edit Multipoint Parameters Will there be a repeater in the netwo...

Page 10: ...h settings or proprietary software The setup program is invoked by connecting The Communicator to any terminal program setting the baud rate for that terminal to 19200 baud and putting the transceiver into setup mode on most models this is done by pressing the Setup button While any terminal that can be set to 19200 baud will work examples for this manual were generated using Windows 98 2000 Hyper...

Page 11: ...f choices for editing the operational parameters and viewing the performance data 0 Set Operation Mode When item 0 is selected the Operation Mode Menu appears as shown in Figure 3 2 The Operation Mode option is used to designate the method in which the particular Transceiver will be used The Communicator operates in a Master to Slave configuration therefore any Transceivers which are intended to o...

Page 12: ...icom Inc 5 September 2001 number of parameters are controlled by the settings in the master therefore you may wish to deploy the master on the communications end where you will have easier access to the transceiver Figure 3 2 Communicator Operation Mode Menu ...

Page 13: ... be solid red 4 2 1 Point to Point Slave When set up as a slave a The Communicator Transceiver will communicate with any master in its call book either directly or through one or two repeaters When functioning as a slave the Entry to Call feature in the Transceiver s call book Figure 5 is not operational The slave will communicate with any master on the list that calls 4 3 2 Point to Multipoint Ma...

Page 14: ...baud rate and radio transmission characteristics are disabled A repeater will connect with any master which calls it the repeater must still be set up in the master s call book The use of one repeater in a communications link will reduce the top data throughput available when compared to a direct master to slave link generally on the order of 50 This impact is generally noticed only when using the...

Page 15: ...slave Note All AT commands issued to the transceiver in Mode 6 must be in ALL CAPS Script File Command Function Controlled ATXF_ Frequency Key ATXT_ Max Packet Size ATXD_ Min Packet Size ATXX_ Transmit Rate ATXR_ RF Data Rate ATXP_ RF Transmit Power ATDT_ Position in Call Book to Call ATD_ Allows specific Communicator Serial Number to be entered to call ATXC_ Used in conjunction with the ATD comma...

Page 16: ...mmand ATD where is the serial number of the transceiver with which you are attempting a link The transceiver will link first to the repeater s specified and then to the slave transceiver If you wish to link to a different slave this time without using a repeater it is imperative that you reissue the ATXC command with being either a position in the Call Book that contains no repeaters or the letter...

Page 17: ...oint network is used in applications where data is collected from many instruments and reported back to one central site As such the architecture of such a system is completely different from point to point applications The theoretical maximum number of slaves that can be configured into a Multipoint network is a function of the data throughput needed from each of the slaves For example if the net...

Page 18: ... which are part of different systems When collocating multipoint systems it is critical that the following parameters are unique for each system Network ID unless using Call Book Frequency Key Max Packet Size Min Packet Size 5 4 Setting Multipoint Parameters 5 4 1 0 Number Repeaters In a Multipoint network it is critical for timing purposes to know whether or not there are repeaters in the network...

Page 19: ...ld be set toward the higher values If a slave receives a good packet from a master more than once it will discard the repeated packets received In addition once a multipoint repeater receives a good packet from the master it will discard any of the repeated packets In turn the repeater will send the packet out to the next repeater or to the slaves the number of times corresponding to its Master Pa...

Page 20: ...ter is set to 3 and the link between the master and repeater is robust Now assume that the repeater s Master Packet Repeat is set to 0 resulting in marginal communications between the repeater and the slaves it is communicating with The data communications between the master and those slaves communicating through the repeater will be marginal because it is only as strong as the weakest link which ...

Page 21: ...lose in with a strong RF link and the other far from the master with a weak link It may be desirable to assign a higher Retry Odd to the slave with the weaker link to give it a better chance of competing with the closer slave for the master s attention 5 4 5 4 DTR Connect Another parameter in a Multipoint network is 4 DTR Connect When set at 1 the slave will connect to the master if it is free whe...

Page 22: ...re information 5 4 9 9 1 PPS Enable Delay The 1 PPS Enable Delay option allows the radio network to propagate a GPS 1PPS signal from the master transceiver to all slaves in a multipoint network When this parameter is properly enabled a 1 PPS pulse on the DTR pin of the master will provide a 1 PPS pulse on the CD line of any slave in the network To use the 1 PPS Enable Delay feature the steps outli...

Page 23: ...Repeater and then enable the slave repeater option setting of 1 5 4 11 B Diagnostics This option when enabled provides diagnostics data over a multipoint network simultaneously with the application data Proper use of diagnostics requires the following 1 Version 5 62 1 62 or later firmware in every transceiver in the network 2 Diagnostics must be enabled on the Master set to 1 3 Number of Repeaters...

Page 24: ...n and in turn which devices will listen to it The Xmit Subnet ID parameter is relevant for Multipoint Repeaters only To disable the Subnet ID both Rcv Subnet ID and Xmit Subnet ID should be set to F Note The Subnet ID settings are irrelevant for the Master Note The Master always transmits on Subnet ID 0 regardless of the setting To force communications directly through the Master the Slave or Repe...

Page 25: ...es 1 2 and 3 are forced along the direction of the solid lines and Slave4 may link to the first Master or Repeater it hears The respective Subnet ID settings are shown in the table below CD TX CTS WIRELESS DATA TRANSCEIVER CD TX CTS WIRELESS DATA TRANSCEIVER CD TX CTS WIRELESS DATA TRANSCEIVER CD TX CTS WIRELESS DATA TRANSCEIVER CD TX CTS WIRELESS DATA TRANSCEIVER Master CD TX CTS WIRELESS DATA TR...

Page 26: ...eater1 Slave3 2 NA Rcv SubnetID 2 forces communication through Repeater2 Slave4 F F Setting of FF allows the Slave to link with the first Master or Repeater it hears with the correct NetworkID Table 5 1 Subnet ID Settings Note The specific SubnetID settings in the previous example are arbitrary Other than using Rcv SubnetID 0 to listen only to the Master and Rcv SubnetID and Xmit SubnetID set to F...

Page 27: ...rom remote process instrumentation to an engineer s computer In this application the baud rate for the Transceiver on the instrumentation might be set to 9600 and the Transceiver on the computer might be set to 57 600 or 115 200 In general it is desirable to set the baud rate to the highest level supported by the device to which it is connected However please note that this may actually result in ...

Page 28: ...Bits Parity Stop Bits 0 8 None 1 1 7 Even 1 2 7 Odd 1 3 8 None 2 4 8 Even 1 5 8 Odd 1 Table 6 1 Data Word Length and Parity Selections 6 3 ModBus RTU Support for ModBus RTU protocol is available The default setting for ModBus RTU is 0 not enabled To enable the ModBus RTU mode 1 In the Set Baud Rate menu enter B and then select 1 2 In the Set MultiPoint Parameters menu set Master Packet Repeat to 3...

Page 29: ...isted in the master s Call Book 3 The master must be programmed to call the slave As shown in Figure 7 1 the Call Book allows users to set up a list of up to 10 Communicator Transceivers with whom they can communicate designate up to 2 repeaters to be used in communicating with a given transceiver and tell the master which slave to call To direct the master to call a slave the user must be in the ...

Page 30: ...ou enter a repeater number you will then be prompted for the number of the second repeater to use If a second repeater is being used then enter the number at this time if not then enter the escape key Once again the modem will retain your entries as shown in the updated Call Book menu screen Important It is important that the Call Book slots 0 9 are filled sequentially beginning with 0 the first s...

Page 31: ...r directly to the master Multipoint Master Call Book Unit Serial Number 555 0001 Entry Number Repeater1 Repeater2 0 000 0000 1 000 0000 Note No serial number entries are necessary in the master s Call Book The master s Call Book may be programmed to call any entry Multipoint Repeater Call Book Unit Serial Number 555 0002 Entry Number Repeater1 Repeater2 0 555 0001 1 000 0000 Multipoint Slave Call ...

Page 32: ...transmission characteristics of the Transceivers As stated in the warning these parameters are for the sophisticated user who has a good understanding of the principles of radio data transmission They should be changed only after consulting this manual In a point to point mode the radio parameters set in the Master will override the settings for the slave and repeater s in the link for all but RF ...

Page 33: ... in the area For instance if there were 10 pairs of Communicator transceivers in operation within a factory or refinery changing the Frequency Key would ensure that they would not jump onto the same frequencies at the same time for the same length of time There are 15 choices available for the Frequency Key 0 9 and A E representing 15 different pseudo random patterns A selection of F provides addi...

Page 34: ...d 921 928 MHz 5 Notch Uses 902 928 with center frequencies of 911 919 notched out 6 Brazil 902 915 MHz Table 8 1 Frequency Bands 900 MHz Note Do NOT use Freq Key 14 D with the Australia 915 928MHz hop table 1 Hop Table Size Within a specified band you may select the number of frequencies to be used ranging from 50 to 112 2 Hop Freq Offset The Hop Freq Offset option is not functional in the 900 MHz...

Page 35: ...d Used 0 Entire band 2 400 2 4835 GHz 1 Entire band but offset frequencies from selection 0 2 Lower 1 3rd of band 3 Middle of band 4 Upper 1 3rd of band 5 2 outer 1 3rds of band avoids the middle Table 8 2 2 4 GHz Frequency Band Selections Available Thus two networks could be set up side by side using the entire band without collisions by setting one network up with selection 0 and the second netw...

Page 36: ...owever that in Point to Point modes the Max and Min Packet Settings will not have any material impact on throughput unless 115 2 KBaud is desired The combination of Max and Min Packet Size Settings determines the allocation of the communication link from the Master to the Slave and vice versa With a given Max Packet Setting the master will transmit up to that number of bytes on every hop If fewer ...

Page 37: ...01 Intuicom Inc 30 September 2001 Setting Min Packet Size RF Data Rate 2 Setting Min Packet Size RF Data Rate 3 0 16 0 8 1 21 1 12 2 26 2 16 3 32 3 20 4 37 4 24 5 42 5 28 6 48 6 32 7 53 7 36 8 58 8 40 9 64 9 44 Table 8 3 Min Packet Size Settings Bytes ...

Page 38: ... 180 201 222 244 8 58 79 100 121 143 164 185 206 228 249 9 63 84 95 127 148 169 190 212 233 254 Table 8 4 Max Packet Size Settings Bytes RF Data Rate 2 Max Setting Min Setting 0 1 2 3 4 5 6 7 8 9 0 8 24 40 56 72 88 104 120 136 152 1 12 28 44 60 76 92 108 124 140 156 2 16 32 48 64 80 96 112 128 144 160 3 20 36 52 68 84 100 116 132 148 164 4 24 40 56 72 88 104 120 136 152 168 5 28 44 60 76 92 108 12...

Page 39: ... 0 whether or not they have data to send they use radio frequency spectrum unnecessarily Therefore Transmit Rate 0 should be used only as a diagnostic tool and not for normal operation 8 5 4 RF Data Rate The Communicator has two settings for the RF Data Rate not to be confused with the RS232 Baud Rate Setting 2 should be used when the transceivers are close together and data throughput is to be op...

Page 40: ...g is 0 where security is enforced the caller s serial number must be in the slave s Call Book with a setting of 1 security is disabled As mentioned in mode 6 Slave Security must be set to one when the unit is operating in a point to point system where it may need to accept calls from more than 10 different Communicator Transceivers However it is important to note that when Slave Security is set to...

Page 41: ...their minimum numbers the time will be approximately 10 mS Please note that this latency can go up significantly if packets are lost between the Master and Slave In point to multipoint mode there is no absolute guarantee that the state change will be communicated to all Slaves in the unlikely event that all repeated packets from the master do not get through to all Slaves Note The RTS to CTS mode ...

Page 42: ...ack to the master Designed primarily for SCADA systems the Lowpower Mode is of little value when significant amounts of data need to be sent from the slave to the master 2 Additional power savings may be realized when the number of repeaters is set to 1 throughout the network even if no repeaters are being used This is shown in the following table in the Draw1 column the Draw0 column shows power d...

Page 43: ...ngs Setting Description Draw0 Draw1 0 Lowpower disabled 70mA 63mA 1 LEDs dimmed 40mA 33mA 2 LEDs dimmed transceiver sleeps every other slot 35mA 30mA 3 LEDs dimmed transceiver sleeps 2 of 3 slots 32mA 29mA 4 63 LEDs dimmed transceiver sleeps number of slots corresponding to setting For example with a setting of 63 the transceiver is sleeping during 62 of the slots 30 26 28 26 Table 8 7 Low Power S...

Page 44: ...at each frequency hop channel are shown in the frequency table The frequency table is accessed by pressing the ENTER key on the computer when the radio statistics menu is displayed Average noise levels will typically fall in the range of 15 to 30 Average noise levels significantly higher than this are an indication of a high level of interference that may degrade the performance of the link High n...

Page 45: ...pproximately 100 Kbaud of bandwidth with an RF data rate of 3 Radio Transmission Parameters Menu and approximately 150 Kbaud of bandwidth with an RF Data Rate of 2 These numbers are reduced approximately 50 if there are one or more repeaters in the network 9 4 Number of Disconnects If during the course of performing a link test the link between the master and the slave is broken and the radios los...

Page 46: ...y potential problems It is also possible that slight adjustments in antenna placement as little as 2 feet will solve noise problems In extreme cases such as when the transceiver is located close to Pager or Cellular Telephone transmission towers Intuicom offers a band pass filter to reduce the out of band noise The standard enclosure for the DGR 115 does not provide protection against water or env...

Page 47: ...R CTS Powered disconnected SR SR SR SR O BR SR O BR Connected no repeater sending sparse data SG IF IF SG IF IF Master calling slave through repeater SR SD SR SR O BR SR O BR Master connected to repeater not to slave FO SD SR SR O BR SR SD SR Repeater connected to slave SG IF IF SG IF IF SG IF IF Mode 6 disconnected SR O BR SR O BR Setup Mode SG SG SG SG SG SG SG SG SG Legend LED CD Carrier Detect...

Page 48: ...ed to master master sending data to slave SR SD O SG O SR SG SD SR Repeater slave connected to master slave sending data to master SG SR SD IF SG IF SR SG SR SR Legend LED CD Carrier Detect LED CTS Clear to Send LED TR Transmit LED Table 11 2 LED Status in Multipoint Mode CTS will be Solid Red with a solid link as the link weakens the CTS light on the repeater and slave will begin to flash BR Blin...

Page 49: ...c mounts These antennas allow versatility in deployment extending its range and allowing it to get around obstructions Any Intuicom transceiver which includes a standard RF connector is for professional installation only and the professional installer must ensure frequency emission limits are not exceeded If external directional antennas are used FCC regulations concerning effective radiated power...

Page 50: ...ansceivers 900MHz Directional Antennas Gain Manufacturer Manufacturer Model Number Intuicom Model Number 10dB Mobile Mark YAG10 915N EAN0900YB 10dB Larsen YA0006 EAN0900YA 6dB Mobile Mark YAG6 915N EAN0906YB 6dB Larsen YA6 900 EAN0906YA 900MHz Omnidirectional Antennas Gain Manufacturer Manufacturer Model Number Intuicom Model Number 5dB Antennex Maxrad EB8965C BMEFC8985HD EAN0905WC 3dB Maxrad MAX ...

Page 51: ...o point master set the Xmit Rate parameter on the Radio Transmission Parameters menu menu 3 item 3 to 0 4 When the modems are returned to operation the master modem will transmit a continuous stream of high speed data The slave modem sends acknowledgements for each of the data packets received from the master The CTS LED on either the slave or the master provides and indication of the quality of t...

Page 52: ...vice connected to the modem Pin 4 Data Terminal Ready DTR The modem only uses this line in Point to Point Slave Master switchable mode refer to Operation Mode Selections or for DTR Connect refer to Multipoint Operation Pin 5 Ground GND Signal return for all signal lines shared with Pin 9 Pin 6 Data Set Ready DSR Always high when the radio is powered from the 2 5mm power connector Indicated power i...

Page 53: ... When asserted the modem will accept data when deasserted the modem will not accept data This should always be used for data rates above 38 4KB or there will be a risk of lost data if an RF link is not very robust Pin 9 Ground GND Signal return for all signal lines shared with Pin 5 ...

Page 54: ...and voltage levels for all of the RS232 signal lines DTR Transmit Data Receive Data Carrier Detect RTS and Clear to Send and TTL standard polarity and voltage level for the Interrupt pin Pin 1 B Power input Pin 2 Interrupt INT Input A 0 volt level on this pin will switch the radio into setup mode Pin Assignment 1 B input 2 Interrupt Ground to invoke menu 3 DTR 4 Ground 5 Transmit Data 6 Ground 7 R...

Page 55: ...n Carrier Detect Output 2 Red Transmit Data Output 3 Orange Receive Data Input 4 Yellow DTR Input 5 Green Ground Signal Ground 6 Blue Data Set Ready Output 7 Violet RTS Input 8 Gray Clear to Send Output 9 White Power Ground Power Ground 10 Black B Power Input 11 Shield Shield Ground Shield Ground Table 15 1 DGR 115W Pinout Figure 15 1 Waterproof Connector ...

Page 56: ... be configured to match the settings shown in Table 21 Parameter Setting Baud Rate Match to The Communicator Data Bits 8 Parity None Stop Bits 1 Parity Check None Off Carrier Detect None Off Flow Control RTS CTS Hardware Connection Started by Carrier Detect Connection Ended by Carrier Detect DTR Signal Always On RTS Signal Always On Table 16 1 Data Communication Settings ...

Page 57: ...link a master communicating to a slave in a dedicated link Master Slave A Diagram B depicts how a link might be set up using a repeater The repeater may be sitting on a hilltop or other elevated structure to link the master to the slave In this setup it may be desirable to use an external omnidirectional antenna on the repeater to extend the range Yagi antennas could be used on either or both of t...

Page 58: ...When two repeaters are used there is no further degradation in the RF speed of the link Master Repeater Repeater Slave C In example D a setup is shown where a master routinely calls a number of slaves at different times The master is communicating with a transceiver designated as a slave repeater which is connected to a remote instrument in the field Since this instrument is placed in an elevated ...

Page 59: ...icts a standard point to multipoint system In this example any data sent from the master is broadcast to all three slaves one of which receives it through a multipoint repeater The data is in turn sent out of the RS232 port of each of the three slaves Slave Master Slave Slave Multipoint Repeater E ...

Page 60: ... of the slave sites as a repeater simultaneously all through the same radio This system works in a manner very similar to a standard multipoint system with repeaters however the number of radios needed is reduced with the use of the multipoint slave repeater feature Slave Master Slave Slave Multipoint Repeater F Multipoint Slave Repeater Slave ...

Page 61: ...eters below may be set with DOS based software available by contacting Intuicom 18 1 Baud Rate The transceiver s RS232 baud rate may be set to 300 600 or 900 baud 18 2 Setup Timeout When enabled this mode invokes a timeout feature for the Setup Menu If the transceiver goes into setup and does not receive a legitimate menu selection within 3 to 5 seconds it will go back out of setup and into its pr...

Page 62: ...n 32 Bit CRC resend on error 32 Bit CRC resend on error Data Encryption Substitution dynamic key Substitution dynamic key Link Throughput 115 KBaud 115 Kbaud Interface RS 232 1200 Baud to 115 2 KBaud asynch full duplex RS 232 1200 Baud to 115 2 KBaud asynch full duplex Power Requirements Transmit current 650 ma at 12V for 1W 600 ma at 8 5V for 400mW 650 ma at 12V for 500mW 600 ma at 8 5V for 400mW...

Page 63: ...r Provided May also be powered through Pin 6 of DB9 connector 9 5 14 0 VDC Center Pin Positive AC Wall Adapter Provided May also be powered through Pin 6 of DB9 connector 6 0 14 0 VDC 15 0 32 0 VDC 9 5 14 0 VDC 6 0 14 0 VDC 15 0 32 0 VDC Antenna 3 inch whip provided Reverse thread SMA connector for external antenna Reverse thread female SMA connector External antenna required N type female connect...

Page 64: ... on each or moving one unit to another room This problem occurred on the initial generation of product with the 555 serial number prefix It has been addressed in transceivers with serial numbers 556 and higher The Transceivers are not in each other s Call Books The number of the slave is in the master s Call Book but the master s menu is not set to call that number There are several phone numbers ...

Page 65: ...eater and remove the master s serial number When all units are powered the slaves Carrier Detect lights should be green when the repeater is unplugged the slaves should lose contact and Carrier Detect should turn red My transceivers have established a solid connection as indicated by the LEDs yet the application I am running is not transmitting and or receiving data correctly The quickest acid tes...

Page 66: ...Intuicom CommunicatorTM User Manual Revision A 2001 Intuicom Inc 59 September 2001 Notes ...

Page 67: ...Intuicom CommunicatorTM User Manual Revision A 2001 Intuicom Inc 60 September 2001 21 Antenna Installation Drawing ...

Page 68: ...for any alleged defects and indemnifies and holds INTUICOM harmless from and against any claims by any party related directly or indirectly to any defects in the Hardware and functional failure improper operation failure to operate according to specifications or any other matter related to the Hardware INTUICOM shall not be liable or responsible for the failure of the Manufacturer to perform under...

Page 69: ...Intuicom CommunicatorTM User Manual Revision A 2001 Intuicom Inc 62 September 2001 ANY DAMAGES SHALL NOT EXCEED THE PROFIT REALIZED BY INTUICOM ON THE SALE OR PROVISION OF THE HARDWARE TO THE CUSTOMER ...