OS214 User`s manual
Contents
1. Quick Installation amp Operating Guide OS214 MM SM 5 PORT 1x4 DUPLEX OPTICAL switch EEC HOLA Systems Echola Systems L L C 1161 Ringwood Ct Ste 100 San Jose CA 95131 Phone 408 321 9663 Fax 408 321 9663 http www echola com optical Installation OS214 is a Linux based 5 port 1x4 duplex Layer 1 optical switch used in patch panel automation applications to share one expensive device with four other optical devices It provides a serial RS232 and an Ethernet 10 100 port connectivity for management Serial port is normally used in special situations such as to debug network connectivity if OS214 is not reachable through Ethernet You might require a Laptop or a PC to configure OS214 with an IP address before connecting to your network so that you would be able to access OS214 from remote You could either use Serial or Ethernet port to configure IP If you use serial port using supplied null modem cable then you would need to configure serial for 38400 baud rate with 8 N 1 to access OS214 If your PC doesn t have a serial Port then you need to use a serial to USB converter which is not supplied with the product to connect to PC s USB port If you use Ethernet then you would need to configure the PC or Laptop s IP to match OS214 s default network The default network configuration is as follows IP Address 10 1 1 100 Mask 255 255 255 0 Gateway 10 1 1 1 DNS 10 1 1 1 If you have successfully con2. port 4 Now port IN and port O4 are connected the LED on output port 4 lights up when this command is issued which confirms that the input port is switched to out port 4 osctl p 1 gt switch input port to output port 1 Now port IN and port O1 are connected the LED on output port 1 lights up when this command is issued which confirms that the input port is switched to out port 1 osctl p 2 t 120 gt switch connect input port IN to output port 2 after 120 secs delayed switching Switch Status Following command shows the status of the switch osctl s lt port gt For example osctl s gt shows port status as follows Note that first column shows Port 1 which refers to input port The second column is the one you should look at which shows what port is connected to the input port currently In this case it is 4 output port All Ports Status Port Port Status 1 4 osctl s 2 gt shows port 2 status only Automating OS214 Optical Switch In order to automate OS214 switch you would need to write tcl expect based script The tcl and expect scripting languages are easy to learn We have given an example script at the end which you can modify to suit your need There are tons of online sources for learning tcl amp expect The following provides quick high level overview of tcl and expect http cplug org Vuploads 2009 02 tcl expect pdf There is a good book from O Reilly wh
3. ax without connectors Switching Time ms lt 10 Crosstalk dB lt 80 Repeatability dB lt 0 1 Mechanical amp Environmental Each Switch s Durability Cycles gt 107 Chassis RU 1 RU Dimension inch 19 W x 9 D x 1 75 H Operating Temperature range C 20 75 Storage Temperature range C 40 70 Humidity 5 85 RH If you have any technical questions and need help you can send email to support echola com or call 408 321 9663 You can also download latest documents and software from our website www echola com 15
4. en check whether the switch command was successful and return the result before terminating the telnet session This script takes argument port number and state of the port on off from commands line argument Cut and Paste the following script on to any editor and save as rosctl Then you can run the script from any machine which supports tcl expect by issuing rosctl p lt port gt For instance to switch input port to output port 2 you can call script as rosctl p 2 Make sure you have proper path set for expect on first line usr bin expect for Unix Linux based systems For windows you will have to uncomment exec and package commands as mentioned in the script All comments inside provide more info on what the script is doing The Sample Tcl Expect script usr bin expect THEFHFFHEFHEFFEIFRHFFHFFHETHETHETHEFRHFTHEFHETHETHEIFRHFEFHFFHETHETHEFFRHFFHFFFHETHETHEFFRHFHFHETHEFHEIFRHFFFHFFHFETHETHEE Script switches to given port and verifies if the port is switched from a remote machine Command Usage rosctl p lt port gt THEFHFFHEFHEFFEIFRHFFHFFHETHETHETHEFRHFFFHEFFHETHETH EEE EEE EET If you run this from a Windows machine uncomment following exec telsh 0 1 package require Expect Check number of arguments passed to this command if lt 3 then spit out error amp exit if arge lt 2 puts Usage rosctl p lt port gt n exit 1 Set telnet host username password and o
5. ernal syslog server use S option of osctl You have to specify the address of the syslog server which will receive these event logs Note this option only available in software 3 version 2 0 and above osctl S 192 168 1 200 Version Info The following command shows hardware and software versions and serial number of the switch osctl v Other Administrative commands Most of other administrative functions can be done using standard Linux commands For example to change the password use passwd command from the Linux prompt and to add new user use useradd command You have to be root user in order to add a new user OS214 s front panel has 5 ports with LC duplex connectors numbered left to right IN and 1 4 The input port is labeled as IN and 4 output ports labeled as O1 O2 O3 and O4 Even though we refer ports as input and output ports they are bi directional duplex so you can use them as either input or output This means switch can act as 1x4 or 4x1 switch LEDs to indicate which output port the input port IN is connected to dial fo bias p el ellel ol elfelleliolieliol Ay ra a nm H IN O1 02 03 04 Input Output ports The input port s Tx and Rx are internally connected to OUTPUT 1 corresponding output ports Tx OUTPUT 2 and Rx This way you can share INPUT yN one device with 4 other devices LAS A OUTPUT 3 and switch between
6. figured Serial or Ethernet then you would see the os214 login prompt login as root to setup network root s password osctl There is one non root default user available on OS214 which can be used once the switch is setup for doing switching of port username osctl password osctl Configuring Static IP Use osctl command to configure a static IP address after login as root user osctl shows detailed osctl command options with examples osctl i 192 168 1 10 m 255 255 255 0 g 192 168 1 1 The above command configures IP address of OS214 as 192 168 1 10 with mask 255 255 255 0 and gateway amp DNS as 192 168 1 Once the IP is configured from a PC or a Laptop using Ethernet or serial port you can then connect OS214 to your network and access it using telnet or ssh Configuring Dynamic IP If you have a DHCP server running on your network and you want to dynamically assign an available IP address to OS214 then use following option osctl D Make sure you know the assigned IP address to login using telnet or ssh next time Configuring Hostname You can also change the hostname of OS214 switch using osctl osctl h OS214 SW 1 The above command changes hostname of OS214 to OS214 SW 1 Configuring DNS Nameserver To configure a DNS or Nameserver you can use n option of osctl osctl n 192 168 1 11 Configuring Syslog Server To send system generated events to an ext
7. i w N OUTPUT 4 The switching of light from input port to any of the four output ports can be achieved using a command line interface To simply the operation all functions are provided in a single command called osctl Osctl provides three major functionalities 1 Network amp Host configuration allowed only in root 2 Switch Control amp Status 3 Port group Management Osctl will show correct syntax usage if you make mistakes in typing command options It will also provide some examples on how to use the command when you make mistakes Also you may use osctl which shows all syntaxes with all examples Network amp Host configuration Network setup has 4 different syntaxes 1 To configure static IP osctl i lt ip gt m lt mask gt g lt gw gt 2 To use DHCP osctl D 3 To configure hostname alone osctl h lt hostname gt 4 To configure DNS NameServer osctl n lt dns ip addr gt 5 To configure Syslog server for event logging osctl S lt syslog server ip addr gt For details refer to installation section as these are explained in that section Switch Control In order to switch input to output port 1 to 4 you have to use osctl in following way osctl p lt 1 2 3 4 gt t lt secs gt Note that the is equivalent to or If the options are in square brackets then it is optional For example osctl p 4 gt switch input port to output
8. ich provides great insight into expect language itself Exploring Expect A Tcl based Toolkit for Automating Interactive Programs Nutshell Handbooks Running scripts from Unix Linux systems If you want to run the script from a Unix Linux based machines then there is possibility that you may be already having these tools on your system Check if it s already been installed by typing expect from Unix Linux prompt If it is not then you will have to install it using package install tool for that particular flavor of Unix Linux For instance on Fedore core Linux you can use yum install tcl expect to install tcl and expect Running scripts from Windows For windows based systems you can install windows free community version of ActiveTcl from Activestate http www activestate com activetcl downloads The expect is not available yet for 64bit version of Windows 7 Vista So you will need to download 32bit version for ActiveTcl first and then make sure to install expect using command teacup install Expect Also you need to enable telnet client on Windows before running any scripts In order to enable telnet on Windows follow these steps Start Control Panel Programs And Features Turn Windows features on or off Check Telnet Client Hit OK After that you can start Telnet via Command Prompt to check if it works The following sample script actually login into OS214 switch and issue a switch command th
9. o port 3 puts Input port is now connected to port 4 puts Input port is now connected to port default puts Input port is now connected to unknown port Terminate telnet send exit r 12 Troubleshooting gt If you use telnet and is very slow it could be due to name server DNS issue Make sure you have name server configured correctly n option Try ping lt name server ip gt to see if name server configured can be reached from OS214 If you don t have dns on your network then you can just remove file etc resolv conf and see if it works normal gt All the group information is stored in a hidden XML database file If for some reason this file is corrupted the system will recover from this error by trying to copy the backup database file If this happens it will throw a warning message but it is not guaranteed that all the group information will be restored correctly In that case you may need to recreate missing groups Electrical Input Power 100 240 AC Total Power Consumption lt 7 Watts Serial Port 1x RS232 Networking 1x 10 100 Ethernet Optical Connectivity 5 Duplex LC ports Data rate No limitation Physical Layer Switch Wavelength nm OS414 SM 1280 1340 nm 1520 1625 nm OS414 MM 850 1310 nm Optical Technology 1x4 Electro mechanical optical switch Insertion Loss dB 0 5 Typical 0 8 M
10. ther parameters modify these to reflect your setup set hostname 192 168 2 20 set username osctl set password osctl set prompt osctl set port lindex argv 1 set commandcontrol osctl p port set commandstatus osctl s port Display info puts Connecting to hostname Connect to the telent server using the spawn command spawn telnet hostname Wait for a login prompt expect re NamelloginlLoginlUsername Login prompt received Send user name to OS214 send username r eof No login prompt received Display an error puts could not connect n Wait for a password prompt from the OS214 11 expect Password Password prompt received Send the password send password r Wait for the switch prompt expect re prompt Issue osctl command to switch given port send commandcontrol r Wait for the switch prompt again to check status expect re prompt Issue osctl command to check status send commandstatus r Discard echoed command we need only the status expect commandstatus r Discard unwanted prompt as well expect re prompt Debug puts n GOTS expect_out 1 string HHA n Save remaining to buffer data set data expect_out 1 string Check return status and display result accordingly switch re data 1 puts Input port is now connected to port 2 puts Input port is now connected t
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