Types of LAN IEEE |
CSMA/CD (802.3) |
Token Ring (802.5) |
Token Bus (802.4) |
Modbus (Industrial
LAN) |
Port |
Ethernet |
RS232 |
RS485 |
RS485 |
Connector |
RJ45 |
9 pin D type (M) |
2 pin relimate |
2 pin relimate |
Cable |
5 or 8 port LAN switch with 5 straight CAT5 UTP cable + 1 cross cable (half length) 2 meter each. |
9 pin D (F-F)straight cable 5 nos(0.75mx4 nos,1.5 m x 1nos ) |
9 pin D (F-F)straight cable 5 nos(0.75mx 4 nos,1.5 m x1nos)with RS232 to RS485 converter for PC connectivity |
Mode |
Star, 4 nodes(Default)or 6
(as per order) client nodes with PC as user/ monitoring (PC) node. |
Physical ring, logical ring, Full duplex, Token passing of 4 nodes(Default)or 6(as per order) with PC monitoring |
Physical bus, logical ring, Half duplex, Sliding, Token passing of 4 nodes(Default)or 6(as per order) with PC monitoring |
Master-Slave half duplex, Stop & wait of 4 nodes(Default)or 6(as
per order), one user
(PC) mode |
PC Software |
Network Protocol Analyzer |
Network monitor |
MODSCAN |
PC Hardware |
Any lab PC with (P4/XP,WIN7/8/10), CDROM, COM Port and one Ethernet port needed (PC is not in scope of supply). |
Node Hardwar e |
a) Embedded Controller device: 89C668 operating @ 16MHz. On chip RAM: 8 KB, Flash / EEPROM: 64KB. b) Serial port (RS232C) 9 pin D (M). c) In built USB to serial converter, d) Display: 20X4 LCD(Backlit), e) General Purpose SMD bicolor (green, red) 8X2 LEDs & 8 SMD
Push button switches / DIP switches, f) Power (SMPS): 5V/2.5Amp SMPS with RCA plug. SMPS. AC I/P230Vac +/-10% / 50Hz x 4 Nos., g) USB to Serial interface using CP2102, h) Variable Slow Clock (2 Hz to 64Hz), i) 3 numbers of SPDT switches for selection of communication between PC, NIC & ECU. |
Node Software |
TCP/IP stack and serial command monitor written in ‘C’ |
Embedded program written in C illustrating particular Ring/Bus topology & token of 32 byte. |
Embedded
program written in C |
Network interface card (NIC) |
Ethernet piggyback module with RJ45 connector. |
Built in RS232 I/F 9 pin D (M) connector |
RS485 piggyback module with 2 pin bus connector. |
Experiment
topics / software
(CSMA/CD) |
a) Setting of IP, MAC for each node. b) Protocols-ICMP (ping), ARP, UDP, HTTP (Web page), SMTP, FTP, TELNET using hyper terminal Winsock, DNS, IP aliasing, node to node communication. c) Error generation under ARP, UDP, IP ban. d) Error generation and selective repeat under ICMP,
Variable Packet Size (Upto1320Bytes), Inter-packet delay (1-60Sec), number of repetitions (Unto 60), Packet error Type (0 to 60). e) Encryption and Decryption. f) Downloading of web page showing IP, MAC address of node, showing frequency of variable Slow Clock of that particular node on web page, uploading enquiry form under HTTP protocol. g) Wireless communication between PC to node, Node to PC and Mobile (Ad-hoc network) using Wi-Fi router. h) Optionally experiments with 6 nodes need extender serial mux panel, cables set etc. I) Separate expts. for token ring, bus & MODBUS. |
Hardware Network
Lab Tool Kit
(Optional) |
DMM, Drill Machine with bits, Small nose Plier, Stripper, Cutter, Blade Knief, Solder Gun with metal & Flux, LAN cable tester RJ45 + RJ11, LAN wire cutter & crimper (each 1 No.) |
General |
Operating Temp– 0 to 500C, Power–230VAC+/-10% / 50Hz, Dimension / Wt– 960mm (L) x 300mm (W) x 545mm (H) / Net Wt. 30 Kg. Gross Wt. = 42 kg. |
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