Table 1-2 Rear Connectors - Digital Equipment AlphaStation 500 Series User Information

Table 1-2 Rear Connectors

Figure Item
Legend
1 On/Off Switch
2 Voltage selection
switch
3 Lock Slot
4 System (chassis)
lock
5 Sound card stereo
LINE OUT
connector
6 Sound card stereo
headphone jack
7 Top Cover Screw
8 Sound card
microphone jack
9 Sound card stereo
LINE IN connector
10 Twisted Pair
connector
11 ThinWire connector
12 64-bit PCI
expansion slot
13, 14, 15 32-bit PCI
expansion slots
16 Enhanced bi-
directional parallel
port
17 Wide SCSI
connector - 68-pin
18 Keyboard connector
19 Mouse connector
20 COM1 - Serial port
connector
21 COM2 - Serial port
connector
22 AC power connector
Function
Power
Allows user to set voltage from factory set 230V
to 115 VAC power
Use with optional Kensington type security lock
Provides security for internal components.
Routes audio signals to an external amplifier
Connects headphones, or amplified speakers
Secures top cover
Connects microphone (2.2Ohm to 2.5V)
Brings audio signals into the card (for example,
from a stereo amplifier)
Connection to the embedded Ethernet controller
Connection to the embedded Ethernet controller
Used for PCI expansion options
In this example, a PCI graphics adapter is shown
in the bottom slot. It provides the interface
between the video/graphics expansion module
(option) and the supported monitor.
Connects an industry-standard parallel printer or
other parallel device
Provides the interface between the system unit
and external SCSI devices
Connects a VMS or PS/2 style keyboard
Connects a PS/2-compatible mouse
Connects serial devices
Connects serial devices
Connects the system to AC power
AlphaStation 500 Series User Information 1-5
System Overview