ATEN CS1644 - Manual (Page 27)

Chapter 4. Keyboard Port Operation
19
Alternate HSM Invocation Keys
An alternate set of HSM invocation keys is provided in case the default set
conflicts with programs running on the computers.
To switch to the alternate HSM invocation set, do the following:
1. Invoke HSM (see page 18).
2. Press and release [H].
The HSM invocation keys become the Ctrl key (instead of Num Lock) and
the F12 key (instead of minus).
Note: This procedure is a toggle between the two methods. To revert back
to the original HSM invocation keys, invoke HSM, then press and
release the H key again.
Alternate Port Switching Keys
The port switching activation keys can be changed from tapping the Scroll
Lock key twice ([Scroll Lock] [Scroll Lock]) to tapping the Ctrl key twice. To
change the port switching activation keys, do the following:
1. Invoke HSM (see page 18).
2. Press and release [T].
Note: This procedure is a toggle between the two methods. To revert back
to the original [Scroll Lock] [Scroll Lock] method, invoke HSM,
then press and release the T key again.