Serial port

Model Specific Directions

					How to add Serial Access
LS1	HD-HLAN v1				For the LS1
KURO/HG	KUROBOX				For Kuro/HG
HG	HD-HGLAN				For the HG
LS2	HD-HLAN v2				For the LS2
LSPRO	LS-GL				Use bottom slot with friction fit connector Solder cable directly to circuit board
LS MINI	LS-WSGL				Use bottom slot with friction fit connector Solder cable directly to circuit board
KUROPRO	KUROBOX Pro				Use bottom Slot Use daughterboard
TERASTATION	Terastation				Terastation Serial console

Level Shifter

All of the Linkstations have serial hardware built in, which they use for Linux kernel messages (console) as well as communication with the boot loader. Whilst normal RS232 uses a nominal 12 volt for communication signals, the Linkstations' serial hardware signals at 3.3v. It is therefore necessary to use a device which provides "level shifting" i.e. translates between the RS232 and 3.3v signal levels.

The cheapest and most widely available level shifters are incorporated into some mobile phone data cables (see below), however slightly more work is required to determine the pin-out of these cables than if you buy some off-the-shelf converter kits.

Build your own TTL/RS232 or TTL/USB interface

• TTL/RS232 - Building a Custom Serial Interface
• TTL/USB - Use a Nokia Serial Cable on an ARM9 Linkstation or Use a cheap phone sync cable with the serial port

Buy a TTL/RS232 or TTL/USB interface

The cheapest TTL/RS232 converter uses a MAX232 with two serial channels for standard TTL 3V input.	The cheapest TTL/USB converter uses a chip by FTDI (the same chip is used in the SCON-KIT )
This board is made by Futurelec, however the order is shipped from Thailand so it takes 2-3 weeks to get it. You'll also need some headers and connectors	This cable is made by FTDI, but the pinout at the connector end would need to be reassigned. Spec Sheet w/ pinout, wire colors & other info You will also need a 4 pin header
Parts List $4.90 - Futurelec: RS232 to TTL-3V Converter Mini Board $0.70 - Futurelec: HEADS4 - 4 Pin .100" Straight Male Headers - Single Row $0.15 - Futurelec: HDCONNS4 - 4 Pin .100" Header Connector $0.15 - Futurelec: HDCONNS6 - 6 Pin .100" Header Connector - Single Row $0.60 - Futurelec: HDPINF - Female Pin for Header Connector $0.17 - Futurelec: POLHDCON4 - 4 Pin .100" Polarized Header Connector $0.60 - Futurelec: PLHDPIN - Crimp Pin for Header Connector $0.55 - Futurelec: DSUBSCF9 - 9 Contact Female Solder Cup Connector	Parts List $0.32 - Mouser Part # 517-929400-01-04 $20.00 - Mouser Part # 895-TTL-232R-3V3
Others	Others
$19.00 - SuperDroid Robots (#MCU-026-172) $29.00 - CompSys (#A232DBH3v) AUD$25.00 - Digital Nemesis RLC-1 3V/5V RS232 Level Converter $23.99 - TCNiSO RS-232 to TTL V2 Board	£11.10 - TTL-232R-3V3 from the FTDI Chip Shop $24.95 - Compsys:USBP Ver 3 kit , FTDI based TTL to USB port converter ￥ 2,717 - SCON: KURO-BOX/PRO専用シリアルコンソールキット