It has an 80 column by 25 line display which is switchable to 132 columns. The baud rate is selectable from 50 to 19200. In practice I've found baud rates above 4800 to be unreliable when data is coming in steady with no inter-character delay.
The rear includes 1/4" phone jack for the keyboard, a BNC connector for external video output, the serial port and a serial printer port are DB25 male, an IEC C14 power socket, fuse holder and power switch.
Photos of the inside
VT102, PiDP-11 and VT102 User Guide
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