http://www.developer.nokia.com/Community/Discussion/showthread.php?274-DLR-2-vs.-DLR-2L-cables

What is the speed difference between DLR-2 and DLR-2L cables?

DLR-2L (9210-cable) is supporting serial speed up to 115200 bps.
DLR-2 (9110-cable) is supporting serial speed up to 57600 bps.

Both cables need either DTR and/or RTS signal from PC/external device
in order to operate as specified in DLR-2 document. This document can
be found from:
http://forum.nokia.com/symbianforum/main/1,6668,1_49_1_1,00.html


Black is GND
White is RX
Blue is TX
Red is MBUS