VT220 Setup

What I did (VT220 Setup)

#####
IF YOU'RE COMING HERE BECAUSE OF PROBLEMS MAKE SURE YOU HAVE THE PROPPER ADAPTER
I tried several adapters and the one from Tripplite works the best. Some don't work at all, others create a lot of gibberish on the VT220.
Link: http://www.amazon.com/gp/product/B0000VYJRY/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
#####


1. Installed drivers for USB -> Serial adapter
2. Run ls /dev/tty.* 
    I see my adapter as: '/dev/tty.usbserial'

3. Edit /etc/gettytab
    Add the following lines at the end of gettytab:

std.ttyUSB:\
	:np:im=\r\n:sp#19200:tt=vt220:

4. Create /Library/LaunchDaemons/serialconsole.plist with the contents:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>serialconsole</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/libexec/getty</string>
		<string>std.ttyUSB</string>
		<string>cu.usbserial</string>
	</array>
	<key>KeepAlive</key>
	<true/>
</dict>
</plist>

Communications Set-Up on the VT220 V2.3:
---------------------------------------
Transmit=19200
Recieve=Transmit
XOFF at 64
8 Bits, No Parity
1 Stop Bit
No Local Echo
EIA Port, Data Leads Only
Disconnect, 2 s Delay
Limited Transmit

I have the serial adapter -> a DB9 to DB25 Male Null Cable -> DB25/DB25 gender changer -> COMM port on the back of the VT220

Running `sudo launchctl load /Library/LaunchDaemons/serialconsole.plist` does nothing. VT220 cursor blinking in top left.

Rebooting the computer with the VT220 plugged in and nothing happens.


I tried this:
	Open the console and type `screen /dev/tty.usbserial 19200' and I get a blank screen with solid non-blinking cursor at the top. 
	Nothing changes on the VT220.


I saw this post: http://jstn.cc/post/8692501831
	He mentions:
		'Eventually I found this page (http://www.club.cc.cmu.edu/~mdille3/doc/mac_osx_serial_console.html), which explains the problem and how to fix it. After adding a line in /etc/gettytab to manually set the terminal type to vt220 everything works perfectly!'

	However I can't seem to find out what he's talking about on (http://www.club.cc.cmu.edu/~mdille3/doc/mac_osx_serial_console.html). 

What worked (VT220 Setup)

1. Get a USB to Serial adapter.
	I tried several, the only one that worked was a Tripp Lite Keyspan
	Link: http://www.amazon.com/gp/product/B0000VYJRY/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1
	Drivers: http://www.tripplite.com/high-speed-usb-to-serial-adapter-keyspan~USA19HS/


2. Install drivers for USB to Serial adapter


3. Run the following command to see your device: `ls /dev/tty.*`
	The result of the command is below:
	
	/dev/tty.Bluetooth-Incoming-Port	/dev/tty.KeySerial1
	/dev/tty.Bluetooth-Modem		/dev/tty.USA19H142P1.1
	
	I'm going to guess that "/dev/tty.KeySerial1" is the correct device
	
	
4. You need to add to the file '/etc/gettytab'
	You can edit it using the program vi:
	`sudo vi /etc/gettytab`
	
	Add the following two lines to the end of the file:
	
std.ttyUSB:\
	:np:im=\r\n:sp#19200:tt=vt220:


5. Now you have to create the launch daemon that will give the login prompt to the terminal:
	You can create the file using the program vi and name it whatever you want, I'm calling it "serialconsole.plist":
	`sudo vi /Library/LaunchDaemons/serialconsole.plist`
	
	Add the following 16 lines to "serialconsole.plist":
	
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>Label</key>
	<string>serialconsole</string>
	<key>ProgramArguments</key>
	<array>
		<string>/usr/libexec/getty</string>
		<string>std.ttyUSB</string>
		<string>cu.KeySerial1</string>
	</array>
	<key>KeepAlive</key>
	<true/>
</dict>
</plist>

	Replacing the line "<string>cu.KeySerial1</string>" specifically the "KeySerial1" part with the name of your device


6. Now you have to load up the daemon:
	You can do that by restarting your computer or running the following:
	`sudo launchctl load /Library/LaunchDaemons/serialconsole.plist`
	
	If everything went smoothly your VT220 should present you with a login prompt



###########################
Some things to keep in mind
###########################

If cu.YourSerialDevice doesn't work then try tty.YourSerialDevice