Connect Tech CTIM-00044 manual

Blue Heat/ Net Sync User Manual Ethernet- to -Serial Synchronous Communications Connect Tech Inc. 42 Arrow Road Guelph, Ontario N1K 1S6 Tel: 519-836-1291 Toll: 800-426-8979 (North America only) Fax: 519-836-4878 Email: sales@connecttech.com support@connecttech.com Web: www.connecttech.com CTIM-000 44 Revision 0.03 , July 8, 2010[...]

Connect Tech Blue Heat/Net Sync User Manu al 2 R e v is i on 0 . 03 Limited Lifetime Warranty Connect Tech Inc. p rovides a Lifetime W arranty for all Connect T ech Inc. products. Should this product, in Connec t Tech Inc.'s opinion, fail to be in good working order during the warranty period, Connect T ech Inc. will, at its option, repair or [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 3 Customer Supp ort Overv iew If you experience difficulties a fter reading the manual a nd/or using the product, co ntact the Connect Tech reseller from which you pu rchased the prod uct. In most cases the reseller can help you with product installatio n and difficulties. In the event that[...]

Connect Tech Blue Heat/Net Sync User Manu al 4 R e v i s i on 0 . 03 Certification Stat ements Preliminary: Testing is still pending. Class A Computing Dev ice Connect Tech Inc. d eclares that the product(s) co vered by the contents of this manual have been tested and found co mpliant with the below listed standard s a s required by the Electro mag[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 5 Table of Conten ts Limited Lifetime Warranty ................................................................................................................... 2 Copyright Notice .............................................................................................................[...]

Connect Tech Blue Heat/Net Sync User Manu al 6 R e v i s i on 0 . 03 info .............................................................................................. 27 net ............................................................................................... 27 save ......................................................................[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 7 DHCP Setup .................................................................................................. 69 Using SCM ........................................................................................... 69 How the Blue Heat/Net Sync Boots Up ...................................[...]

Connect Tech Blue Heat/Net Sync User Manu al 8 R e v i s i on 0 . 03 List of Tables Table 1: Blu eHeat/Net Sync Power Connections an d Current Specification s .............................. 16 Table 2: Con nector Properties ................................................................ ...................................... 16 Table 3: Availab le[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 9 Introduction Connect Tech‟s Bl ue Heat/Net Sync allo ws remote access to synchronous/as ynchronous ser ial devices via an Ethernet LAN or the Internet. Blue Heat/Net Sync network-enables serial communication de vices that are designed to be connected to serial ports so that the de vices[...]

Connect Tech Blue Heat/Net Sync User Manu al 10 Re vi si on 0. 03 Understand ing Virtual COM P orts In a typical serial port setup, t he app lication communicates directly with the connected serial port hardware. Virtual COM po rts differ in that the application co mmunicates with a net work protocol layer that transfers the necessar y information [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 11 Hardware Instal l ation Connectin g the Blue Heat/Net Sync to Y our Network: Before you begin, take a minute to ensure that your package incl udes the required co mponents for your Blue Heat/Net Sync: • One Blue Heat/Net S ync unit • One power suppl y • One CD containing so ftware [...]

Connect Tech Blue Heat/Net Sync User Manu al 12 Re vi si on 0. 03 Serial Port LEDs The serial po rts LEDs indicate serial activity for each port. • A flashing LED i ndicates that the port in q uestion is receiving or transmitting data. Connectin g Serial Devices V.28 Connections : V.28 has signaling level s the sa me EIA RS232. Basic Async (V .28[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 13 RS - 422/ V.11 Con nections The following are basic con nections that can be acco mplished when the I/O levels are in V.11 (RS - 422) mode. V.11 mode signaling can be enabled w ith EIA -530 , RS-449 or X.21 modes on y our Blue Heat/Net Sync. Figure 5: Ba sic RS-422/V.11 Asynchrono us Con[...]

Connect Tech Blue Heat/Net Sync User Manu al 14 Re vi si on 0. 03 Loopb ack Connectors Loopback connectors are u seful for performin g diagnostics. T he following figure illustrates the recommended p inouts for creating loop back connectors for Blue Heat/Net Sync . Figure 7: Recommended Pinouts fo r V.28 (RS-2 32) L oop back Co nnector Figure 8: Re[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 15 Connectin g Power The Blue Heat/Net S ync uses either a sta ndard DC po w er jack or a Phoenix locking screw terminal connector for power input. The Blue Heat/Net Sync can be safely connected o r disconnected at an y time. The standard p ower supply requirements are as follo ws: Model BM[...]

Connect Tech Blue Heat/Net Sync User Manu al 16 Re vi si on 0. 03 Table 1: BlueH eat/Net Sync Power Connections and Cur rent Specifications BlueHeat/Net Description Connector plug type Connector Polarity Voltage Current 4 Port DB25 Synchronous / Asynchronous models (Rev A) Centre Positive * 5VDC 875mA Left Positive * 5-28VDC @5V=2500mA @28V=450mA 4[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 17 Activating the Spe cial Operations Mod e and Default Settings Blue Heat/Net Sync includes a push butto n on the rear o f the unit beside the DC po wer connector. T his push button can be used to per form special operatio ns such as resetti ng the unit to its default settings or forcing p[...]

Connect Tech Blue Heat/Net Sync User Manu al 18 Re vi si on 0. 03 Table 3 : Available Special Operations Special Operation Number of presses (a nd binary representation) Usage Force port scanning to first two ports ( Scanning run s until current scannin g delay setting times out. Defa ult is 30 seconds). ONE press This forces the first two po rts t[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 19 In the above example, a rapidly flashing CPU LED during the boot up process signifies the B lue Heat/Net Sync has e xperienced an er ror. Port LEDs 1 through 4 si gnify whic h error has occurred. In this case, LED 2 and 3 are on, so the error code is 6. The chart b elo w defines the erro[...]

Connect Tech Blue Heat/Net Sync User Manu al 20 Re vi si on 0. 03 5. Cannot ob tain an operating s ystem image (uClinux) to r un. This will occur wh en any of the enabled boot sources ( flash or BOOTP/TFT P or TFTP) fail to o btain a valid compressed operating system i mage to run. Check network connections, server computer or your unit's sett[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 21 15. Mismatched CDS versio n number uClinux checks the CDS vers ion number against its expected CD S version number. If they are d ifferent, uClinu x does not continue its operatio n. If you have updated the uClinux code via SCM and have not updated the loader/SCM cod e, this error appea [...]

Connect Tech Blue Heat/Net Sync User Manu al 22 Re vi si on 0. 03 Set the IP Add ress U sing the Web Configuration Manager NOTE : If you use the W indows Configuration Manager and use Auto Discov er to locate your Blue Heat/Net Sync on the network , y ou c an right-click and launch the W eb Configuration Manager fr om there. You only need to use t [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 23 Blue Heat/Net Sy nc Configu ration The Blue Heat/Net S ync comprises se veral software co m ponents, each o f which manages various functions o f the Blue Heat/Net S ync. The following is a brea kdown of these components.  Operating Syste m Softwa re o Host Operating Syste m Driver o [...]

Connect Tech Blue Heat/Net Sync User Manu al 24 Re vi si on 0. 03 program on a PC). Configuration Data Space (CDS) This is the area, in non -volatile ( flash) memory, which stores the con figuration parameters. CDS (Config uration Data Space) Description The Blue Heat/Net S ync has a number o f configuration parameters which are stored in a non- vo[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 25 SCM (Serial Co nfiguration Manager) Description The Serial Configuration Ma nager is one of the app lications you can use to access the Configuration Data Sp ace (CDS) setti ngs of the Blue Heat/Net Sync. Since the CDS stores the default serial port settin gs, it is important that the li[...]

Connect Tech Blue Heat/Net Sync User Manu al 26 Re vi si on 0. 03  save Sa ve setting c hanges to non-vo latile flash storage  update Download a new oper ating system via TFTP and flash, (uClinux) and loader/SCM image. Command Detai ls boot Syntax: boot [mode=] [file=] [delay=] Description: This command establis hes the Blue Heat/Net S ync bo[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 27 password= This sets the password phrase, which is used to gain access to the SCM and WCM modes of configuri ng the Blue H eat/Net. T he default is “password”. prompt= This setting controls whether a password pro m pt (and other password entry status information) is prese nted to the [...]

Connect Tech Blue Heat/Net Sync User Manu al 28 Re vi si on 0. 03 [my_ip= | mip =] [s erver_ip= | sip=] [gateway_ip= | gip=] [subnetm ask= | snm=] [broadcast_ip = | bcip=] [dns_ip=] [domain=] [host nam e=1 host=] [tcp=] [mac=] [dhcp=] Description: Establis hes the network settings. Options: network= | net= Sets the “network” portion o f the IP [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 29 mac= This displays the M AC address of the unit. (T he default is 00 :0C:8B:SS:SS:SS , where SS:SS:SS is the he x value of the serial nu mber of the unit). Note: T he MAC address ca nnot be changed, it can o nly be displayed. dhcp= This enables or disables DHCP suppor t. yes enables no d[...]

Connect Tech Blue Heat/Net Sync User Manu al 30 Re vi si on 0. 03 se rver_ip= | sip= Specify the Server IP address from which the file is to be d ownloaded. file= Specify the file na m e to do wnload. If the – jf fs option is chosen, the n the file= option is mandator y. NOTE: After do wnloading, the image is check ed to ensure the file is correc[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 31 WCM (Web C onfiguration Man ager) Signing In to th e Web Configuratio n Manager You will need to kno w the IP address of your Blue Heat/Net Sync unit before you use the Web Configuration Manager. Use t he Serial Con figuration Manager to assign the B lue Heat/Net Sync a valid IP ad dress[...]

Connect Tech Blue Heat/Net Sync User Manu al 32 Re vi si on 0. 03 Figure 14 : Blue Hea t/Net Sync Settings[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 33 Configure Advanced Seria l Settings The Web Configuration Manager also allo ws y ou to co nfigure more advanced serial po rt properties. T hese advanced proper ties will allow you to conf igure the XOn Character, XOf f Character, Break Character , Escape Character, Erro r Character and E[...]

Connect Tech Blue Heat/Net Sync User Manu al 34 Re vi si on 0. 03 • Server IP Address : T his option sets the server IP addr ess. This is used as the Server address to use when bo otp mode or TFTP mode is enabled . The default Server IP address is 0.0.0 .0 • Blue Heat/Net Sync IP Address : T his option sets the IP add ress of y our Blue Heat/Ne[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 35 Figure 15 : Config uring Blue Heat/Net Sync Settings Configure Fir m ware This section enables you to download new firmware to the B lue Heat/Net Sync unit. Se lect a download source and a specific firmware file path, if app licable, and then submit the do wnload request. This section al[...]

Connect Tech Blue Heat/Net Sync User Manu al 36 Re vi si on 0. 03 NOTE: T his function is not currentl y operational. Figure 17 : Resto re Default Settings Saving To Flash When you make confi guration changes, the chan ges are stored temporarily in me m ory. If you reboot your Blue Heat/Net Sync at this po int, any configuration changes you made wi[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 37 Figure 18 : Sav ing To Flash If you haven't made any co nfiguration changes, the Save To F lash button will re m ain gre y. Monitoring Your Bl ue Heat/Net The Blue Heat/Net S ync WCM lets you monitor serial port activity, net w ork traffic a nd TCP/IP statistics as well as pr ovidin[...]

Connect Tech Blue Heat/Net Sync User Manu al 38 Re vi si on 0. 03 Monitor Network Traffic This page allo ws you to view all network activity on your Blue Heat/Net. For each active network connection, you can view the local IP address and port, the remote IP ad dress and port, the status of the connect ion, the protocol being used, as well a s the n[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 39 Use this link to find infor mation such as device serial n umber, runtime software versions and firmware versions. Figure 22 : My Blue Heat/Net Sync Hardwa re Details Figure 23 : My Blue Heat/Net Sync Softwa re Details[...]

Connect Tech Blue Heat/Net Sync User Manu al 40 Re vi si on 0. 03 Software Insta llation for Win do w s The Blue Heat/Net S ync is designed for eas y installation an d set up. This section deals with i nstalling and usin g the Blue Heat/Net Sync software to co mmunicate with your Blue Heat/Ne t Sync . To do so, you will use the CD included w ith th[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 41 Figure 25 : Blue Heat/Net Sync Software Installation Screen[...]

Connect Tech Blue Heat/Net Sync User Manu al 42 Re vi si on 0. 03 The Blue Heat/Net Configuration Manager Setup Wizar d will begin. Click Next to start. Next you will have the o ption to launch the co nfiguration manager after installatio n.[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 43 The installer will install t he Configuration Manager i nto C: Program FilesCTIBlue Heat N et . If you‟d prefer an alternate locat ion, specify in the space pro vided, or click Br owse to locate the new folder. Click Next . You will then be pro mpted to confirm you wish to install t[...]

Connect Tech Blue Heat/Net Sync User Manu al 44 Re vi si on 0. 03 Running the Configu ration Manager If you chose the optio n to launch the Bl ue Heat/Net Sync Co nfiguration Manager after installation, the main Configuration Manager window should now be open on your s creen. If you did not, you can launc h it from the CTI d efault folder or whiche[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 45 Configure Default B lue Heat/Net Sync You can choose this o ption when you r Blue Heat/ Net Sync still has a fac tory default IP addr ess of 192.168 .42.1. It will launch the Web Con figuration Manager for this IP address, enabling you to configure your Blue Heat/Net S ync as outlined in[...]

Connect Tech Blue Heat/Net Sync User Manu al 46 Re vi si on 0. 03 Auto Discover Blue Heat/Net Sync The auto discover will broadcast a message to all the Blue Hea t/Net Sync devices on your network. Upon receiving the b roadcast packet, the Blue Heat /Net Sync device will r espond. Click the Auto Discover button to search for Blue Heat/Net. T he sea[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 47 Firmware Up grades If you need to re -install your current fir mware, it is located in the firmware directory of the CD you received with your B lue Heat/Net Sync. Newer firmware versio ns are available from Connect T ech‟s website , http://www.connecttech.co m/asp/Suppo rt/DownloadZon[...]

Connect Tech Blue Heat/Net Sync User Manu al 48 Re vi si on 0. 03 Software Dev elopment Hardware Info r mation The information provided in this section will offer d ata pertaining to the hard ware components present within the Blue Heat/Net S ync unit. Hard ware information docu m entation will encompass hardware resources, base add ress map, memor[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 49 Interrupt s INT * Usage /INT1, /INT2 IUSC logically or-ed interrupts. IUSC Interr upts can be muxed to any of the t w o INT s. One use is to mux all po rts configured for Async mode to o ne IRQ and all ports configured for Sync mode to another interrupt. T his sh ould facilitate b etter [...]

Connect Tech Blue Heat/Net Sync User Manu al 50 Re vi si on 0. 03 Memory Map of IUS C and PLD Functio ns ColdFire (5272) Bu s: A ColdFire CS# signal is u sed to select the entire region, setup with the follo wing attributes… 8K (8192) byte region 16 Bit bus Use TA# signal to ter minate the bus cycle (this places wait state generation in the ha nd[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 51 A[5..1] Addresses IUSC registers (see Me mory Map Table below). A[0] Not used explicitl y, A0 (along with BS0# and BS1# ) select byte size portions of IUSC registers. PLD Resource Acce ss : A[12] Must be one (1 ). A[11..5] Are not used. A[4..2] Are decoded i nto selections o f internal P[...]

Connect Tech Blue Heat/Net Sync User Manu al 52 Re vi si on 0. 03 Address Offset (in hex) Area (ite m ) Accessed Register Accessed Notes Writes go to the T ransmitter FIFO Reads come fro m th e Receive r FIFO 022 IUSC-0 Sreg RMR 024 IUSC-0 Sreg RCSR 026 IUSC-0 Sreg RICR 028 IUSC-0 Sreg RSR 02A IUSC-0 Sreg RCLR 02C IUSC-0 Sreg RCCR 02E IUSC-0 Sreg T[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0. 03 53 Address Offset (in hex) Area (ite m ) Accessed Register Accessed Notes 1A0 1A9 --- --- Reserved, do not access 1AA IUSC-0 Dreg RBCR 1AC IUSC-0 Dreg RARL 1AE IUSC-0 Dreg RARU 1B0 1B9 --- --- Reserved, do not access 1BA IUSC-0 Dreg NRBCR 1BC IUSC-0 Dreg NRARL 1BE IUSC-0 Dreg NRARU 1C0 1FF [...]

Connect Tech Blue Heat/Net Sync User Manual 54 Revis PLD Registers: Offset Reg Na m e R/W Valid Bit Bit Descriptions Reset Values (Hex) 1000 RTCU Real Time Clock Upper R/W D15..0 Control Bits: Rea d/Write only as a 16 Bit word. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 Msk1 MP MPP MPO IntEN SE EXT ME Msk0 X X H4 H3 H2 H1 H0 Msk1: On writes, set thi s b[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 55 1008 100C 1010 1014 LIF C 1,2,3,4 Line I nt erface Control 1008= Port 1 100C = Port 2 1010 = Port 3 1014 = Port 4 R/W D15..0 Control Bits: Rea d/Write only as a 16 Bit word. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 X DCDC DCDS ES FSM CTSC CTSM1 CTSM0 RTS DC 42W DM SPT SP2 SP1 SP0 Important N[...]

Connect Tech Blue Heat/Net Sync User Manu al 56 R e v i s i o n 0 . 03 1018 PLD_CNT RL Control Bits R/W D15..0 Control Bits: Rea d/Write only as a 16 Bit word. 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 I M[3] I M[2] I M[1] I M[0] TRG[3] TRG[2] TRG[1] TRG[0] X X IABT SMIE SR[3] SR[2] SR[1] SR[0] SR[3..0] IU SC Software Res et: SR[0]=Po rt1… SR[3]=Po r[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 57 System Block D i agrams[...]

Connect Tech Blue Heat/Net Sync User Manu al 58 R e v i s i o n 0 . 03[...]

Conn ect Tech Blue Heat/Net Sync Use r Manual Revision 0.01 59 Port Settings , Clock Setup and General Set tings Required [condition s] Optional [co nditions] (blank) means setting para meter is not required fo r the mode. TBD means To be Deter mined at a la ter date. Serial Mode ( smode ) BHN_Port Settings Async MonoSync BiSync Trans-BiSync HDLC s[...]

Connect Tech Blue Heat/Net Sync User Manu al 60 R e v i s i o n 0 . 03 Serial Mode ( smode ) BHN_Port Settings Async MonoSync BiSync Trans-BiSync HDLC sync_addr.rx0 Required Required Required Required sync_addr.rx1 Required Required Optional sync_addr.rx_len Required Required Required sync_addr.strip_ sync Optional Optional Optional dbits.t/rx Requ[...]

Conn ect Tech Blue Heat/Net Sync Use r Manual Revision 0.01 61 IUSC Clocking Logic: The following diagra m was scanned from the IUSC manual page 4 - 3 and corrections have been made. Do not use the diagra m from the IUSC manual, use the corrected version w e have provided below.[...]

Connect Tech Blue Heat/Net Sync User Manual 62 Revision 0.01 62 Appen dix Blue Heat/Net Syn c Specifica tions Operating Environ ment 4 port model: 0ºC to 60 ºC (32ºF to 158ºF) Communications Baud Rates: Synchronous : Up to 9.216 M bps w ith internal reference clo ck, up to 10 M bps with external re ference clock. Asynchronou s: 230.4 Kb ps Cust[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 63 63 Protocol Des criptions The Blue Heat/Net Sync supports a variet y of protocols. The follo wing is a brief explanation of each and how they are i mplemented. ARP Address Resolution Pro tocol, a method used to find a unit‟ s Ethernet MAC address fro m its Internet address. BOOTP Bootst[...]

Connect Tech Blue Heat/Net Sync User Manu al 64 Re vi si on 0. 03 Pinouts DB -25 Female Pino uts DB25F Line Mode Pin # Signal Name V.28 in brackets V.35 EIA- 530 RS232 (V.28) EIA- 530A X.21 (V.11) 14 TX+ V.35 [4] V.11 Hi -Z V.11 V.11 2 TX - (TX) V.35 [4] V.11 V.28 V.11 V.11 16 RX+ V.35 [4] V.11 [1] Hi -Z V.11 [1] V.11 [1] 3 RX - (RX) V.35 [4] V.11 [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 65 65 DB -9 Female Pinout s DB9F Pin Signal Name [1] Functional Notes 1 RTC_Clear Clears and holds the seconds count of the Real Time Clock at 00. [3], [6] 2 RTC_Seconds Provides the external time base for the Real Time Clock. Internal time base is 1 Hz [3], [5] 3 GND Signal reference for al[...]

Connect Tech Blue Heat/Net Sync User Manu al 66 Re vi si on 0. 03 Multi-drop Commu nications Using V.1 1 / RS422/RS485 Li ne Mode s When wiring multi -drop RS -4 85 networks, it is necessary to wire the devices in a “Dai sy Chain”, they must not b e wired with a “Star” topo logy, see diagram. Rack Mount Op tion: Blue Heat/Net Sync can be ra[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 67 67 Default Settings Network Settings Blue Heat/Net Sync IP address 192. 168.42.1 Server IP address 0.0.0.0 (used for firmware do wnloads) Gateway IP add ress 0 .0.0.0 Subnet Mask 25 5.255.255.0 Broadcast IP address 255.255.25 5.255 (used by the bootp process) Domain Name Server I P addres[...]

Connect Tech Blue Heat/Net Sync User Manu al 68 Re vi si on 0. 03 Common Co nfiguration Setup s Static IP Setup In some networking enviro nments it is best to have the IP address set to a fixed val ue. The advantage is that since it i s fixed, connecting to it can be a lot simpler. Sta tic IP is often the b est choice if you are tr ying to connect [...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 69 69 DHCP Setup In many modern net w orks IP numbers ar e not static but are auto matically assigned b y a DHCP server and can change over ti me or on each po w er up. DHCP must be enabled on the Blue Heat/Net Sync beca use it is shipped to use a default static IP (192.168 .42.1) Using SCM [...]

Connect Tech Blue Heat/Net Sync User Manu al 70 Re vi si on 0. 03 Bootup Sequence Figure 30 : Boo tup Sequence Boot from Flash Enabled? Decompre ss uClinux from F lash to SDRAM Bootp Enabled? Y Y N Obtain boot information fro m Bootp Serve r Decompre ss OK N Server Responds Update CDS (RA M c opy ) Information (filename & IP address) Y TFTP Ena[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 71 71 Flowchart of Specia l Operations Mode using th e reset butt on Figure 31 : Boot up Sequence via Reset Butt on Asynchronous C ommunications Tuto rial The Blue Heat/Net S ync features four synchrono us/asynchronous serial communicatio n po rts. Asynchronous com munication is a simple, co[...]

Connect Tech Blue Heat/Net Sync User Manu al 72 Re vi si on 0. 03 Figure 32 : Typical A synchronous Date F rame Serial Line Inte r face Tu torial RS -232 Line Interfa ce: RS -232 is the si mplest, least expensive li ne interface standard , the Sipex trancei vers used on the Blue Heat/Net Sync re fer to RS232 as V.2 8 mode. It is also r eferred to a[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 73 73 mode RS -48 5 is fully compatible with RS -422; which is consid ered a subset of RS - 485. The use of differential tran smitters and receivers e nsures RS -485 communications are reliable and robust. T his means two wires are used to trans mit or receive a signal. One wire carries the [...]

Connect Tech Blue Heat/Net Sync User Manu al 74 Re vi si on 0. 03 Multi-drop 4-Wire, Ful l Duplex Co mmunications: In a multi-drop 4-wire differntial net work, two to 32 d evices are connected together. Note t hat each RS-485 receiver c ounts as a d evice or “load”. In this multi -drop mode of co mmunication, a master slave protoco l must be en[...]

Connect Tech Blue Heat/Net Sync User Manual Revision 0.01 75 75 Bus Contention on D ifferential Multi-drop Networks: Bus contention occurs when two or more devices enabled on a bus attempt to run the bus to opposite logic values. Fro m the diagra m above, we can se e that there ar e multiple differential transmitters (TXD) o n the bus. To avoid the[...]

Connect Tech Blue Heat/Net Sync User Manu al 76 Re vi si on 0. 03 Termination Resist ors in Different ial N etworks Termination Resi stors in Differential Networks: Differential net w orks often be nefit from the installation o f termination resistors. T ermination is rarely required for lo wer baud rates, for example 9600 b aud or less. However, d[...]