DEC VT1000 Service Manual page 13

Memory
The terminal has a memory capacity of 4 megabytes. The base system
has 2 megabytes of RAM memory—1 megabyte of RAM on the system
logic board and a 1-megabyte SIMM card on the controller board (a RAM
controller board or image board).
SIMM stands for single in-line memory module. The controller board has
slots for three 1-megabyte SIMM cards.
System Box Connectors and Switches
The following figure shows the connector panel on the rear of the system
box:
3 4
2 5
1 6
2
3
1
Monitor
Monitor selection
switch
Mouse/pointing
device
5
4 6 7
Keyboard
Serial printer port
Serial host port
Overview of the Terminal 5
9
8
G S F _ 0 8 2 4 _ 8 9 . D G
ThinWire Ethernet
System box ac power
Monitor ac power