The RJ11 Line1 and Line2 (and optional Line1 + Line2) adapters would
have to be rewired to support two serial ports on the LX200. Although
the modification would not be difficult, it is definitely not "plug and
play"...

Since these adapters are intended for phone lines, they typically only
contain four conductors. The center pair is Line 1, the next pair
"outward" is Line 2. Five conductors are required for two serial ports
sharing a common ground.

Also, on the LX200, the second serial port requires the use of the pin
on the extreme right (opposite side from the B+ pin). As a result, the
easiest way to implement dual serial ports is to use a six-conductor
cable plugged into the LX200 RS232 port and to split the cable at the
"computer" end for two DB-9's (sorry, my PC bias is showing...).

- Wes

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