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DEC VT1000 User Manual

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24 Testing
Table 2–5
P3
Values to Specify Mode Bits
Bit
Position P3 Value Description
0 1 External loopback: host port.
1 2 External loopback: printer port.
2 4 External loopback: mouse port.
3 8 LANCE loopback: Ethernet port.
4 16 Test all baud rates.
5 32 Do not exercise modem control signals.
Examples
NOTE
NCP may time out while waiting for the terminal to perform self-
tests. The timeout period of NCP version Phase V is adjustable.
To run test number 5 with mode bits 4 and 1 specified:
1. Calculate the P3 value to specify mode bits 4 and 1.
Bit position 5 4 3210
5−Bit Mode Register
Decimal Value 32 16
16 + = 18 decimal
010010
8421
2
2. Enter the command:
DWT>>> TEST5518
To run all tests without mode bits:
DWT>>> TEST 0 18
To run a single test (for example, test 16):
DWT>>> TEST 16

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DEC VT1000 Specifications

General IconGeneral
BrandDEC
ModelVT1000
CategoryTouch terminals
LanguageEnglish

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