Tektronix TDS7054, Service Manual

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Specifications
TDS7104 & TDS7054 Service Manual
1- 17
Table 1- 6: Input/output port specifications (Cont.)
Characteristic Description
Internal reference output
Frequency 10 MHz 15 ppm over any
≥
1 ms interval. Aging
<
1 ppm per year
Output voltage V
out
high V
out
low (true)
≥
2.5 V into open circuit,
≥
1.0 V into 50
Ω
load
≤
0.7 V with
≤
4 ma sink,
≤
0.25 V into 50
Ω
load
Rear-panel I/O ports Ports located on the rear panel
Parallel port (IEEE 1284) DB-25 connector, supports the following modes:
-standard (output only)
bidirectional (PS-2 compatible)
bidirectional enhanced parallel port (IEEE 1284
standard, mode 1 or mode 2, v 1.7)
-bidirectional high-speed extended capabilities
Audio ports Miniature phone jacks for stereo microphone input and
stereo line output
USB port Allows connection or disconnection of USB keyboard
and/or mouse while instrument power is on
Keyboard port PS-2 compatible, instrument power must be off to make
connection
Mouse port PS-2 compatible, instrument power must be off to make
connection
LAN port RJ-45 connector, supports 10 base-T and 100 base-T
Serial port DB-9 COM1 port, uses NS16C550-compatible UARTS,
transfer speeds up to 115.2 kb/s
SVGA video port Upper video port, DB-15 female connector, connect a
second monitor to use dual-monitor display mode,
supports Basic requirements of PC99 specifications
GPIB port IEEE 488.2 standard interface
Scope VGA video port Lower video port, DB-15 female connector, 31.6 kHz
sync, EIA RS-343A compliant, connect to show the
instrument display, including live waveforms, on an
external monitor