User`s manual

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Tektronix to VXI Technology Cross-Ref. Guide 149
SECTION 17
VX4801 TO SM4801: 48 CH. TTL I/O
SPECIFICATION COMPARISONS
GENERAL SPECIFICATIONS Tektronix VX4801 VXI Technology SM4801
MODEL TYPE
Isolated TTL I/O Module TTL I/O Module
CONFIGURATION
80 Channel, TTL I/O Lines 96 Channel, TTL I/O Lines
INTERFACE TYPE
Message Based, SCPI, IEEE 488.2 Register Based
VXI REVISION LEVEL
1.4 1.4
INSTRUMENT DRIVERS
WIN framework (Rev. 4.0)
WIN95 framework (Rev. 4.0)
WINNT framework (Rev. 4.0)
WIN95 framework (Rev. 4.0)
WINNT framework (Rev. 4.0)
MODULE SIZE
Single-wide, C-size Single-wide, C-size
ELECTRICAL SPECIFICATIONS
OUTPUT HIGH VOLTAGE (V
OH
)
> 4.4 V > 4.5 V maximum
OUTPUT LOW VOLTAGE (V
OL
)
< 0.4 V < 0.4 V @ 300 mA
OUTPUT LOW CURRENT (I
OL
)
< 24 mA < 300 mA
INPUT HIGH VOLTAGE (V
IH
)
> 2.0 V > 2.0 V
INPUT LOW VOLTAGE (V
IL
)
> 0.8 V > 1.5 V
INPUT CURRENT
230 µA maximum 100 µA maximum
TRI-STATE LEAKAGE
0.5 µA typical (5.0 µA maximum) N/A
ISOLATION RESISTANCE
> 100 x 10
6
N/A
ISOLATION VOLTAGE
> 500 V dc N/A