On 2015-10-22 15:05, william degnan wrote:
Note that while in theory the AVO was an added option, the VT102 did not
have it (or the printer port) as separate parts that were added to a basic
VT100. The VT102 had a different board with all those options already on
the motherboard, and no additional options could be installed.
So, you cannot take the AVO options out of a VT102 and add it to a VT100
(for example).
Also, for example, the keyboard on a VT100 differs from a VT102.
You could use a VT100 keyboard on a VT102, and vice versa, but the LEDs on
the keyboard of a VT102 are used for different things than on a VT100.
Johnny
Thanks for the clarification. I you're saying for the 101 and 102 you
start with a core terminal at the factory and they add the options or it's
a field upgrade kind of thing because parts not swapped out easily or
added. I confirm about the ROMs too, I noticed that the SetUp menus differ
depending on what options are installed.
No.
The VT100 is field upgradeable to a VT101 (I think) or a VT102 (I know).
However, the VT102 is not the same as a VT100 with the added AVO and
printer. Functionally they are the same, but inside they will look
different.
The VT102 have a motherboard with the AVO and printer option integrated
into the motherboard itself. A VT100 with the options added will have a
daughterboard and components added to it's motherboard.
So, the VT102 do not start out as a VT100 and then some stuff added.
There were (if I remember right) some other options for the VT100 as
well. You cannot add those other options to a VT102 either. The VT102 is
pretty much a fixed and finished product as it is. The VT100 on the
other hand could be expanded in various ways.
The VT102 was basically a cost reduced solution with a fixed set of
options, which were the ones most commonly asked for and used.
And, as I mentioned, they redesignated some keyboard LEDs on the VT102
for specific information. Thus, on a VT100 you have four user
programmable LEDs on the keyboard, but on the VT102 you only have one.
Johnny
--
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: [email protected] || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
