Cameca SX-50 and SX-100 with Sun Sparc workstation were shipped with CRT monitor.
The signal from the Sun Sparc workstation is compatible with standard square PC-monitors. However, the Sun Sparcstation has own connector, which is mechanically incompatible with the standard VGA cable.
The Sun Sparcstation can be connected to a standard PC monitor with a standard VGA cable via a converter.
For example, LINDY provides the adapter for this purpose: LINDY P/N 70127
[15 JAN 2019]
LINDY 70127 seems to be discontinued although it is still availabe on Amazon etc.
Monoprice also provides 13W3 to VGA adapter.