User`s manual

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Tektronix to VXI Technology Cross-Ref. Guide 131
SECTION 14
VX4801 TO VTI4801: 48 CHANNEL DIGITAL I/O
TTL/CMOS VMIP W/NONE/VM1548/NONE
SPECIFICATION COMPARISONS
GENERAL SPECIFICATIONS Tektronix VX4801 VXI Technology VTI4801
MODEL TYPE
Isolated TTL I/O Module TTL I/O Module
CONFIGURATION
48 Channel, TTL I/O Lines 48 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 > 3.1 V @ -15 mA
OUTPUT LOW VOLTAGE (V
OL
)
< 0.4 V < 0.55 V@ 64 mA
OUTPUT LOW CURRENT (I
OL
)
< 24 mA < 64 mA
INPUT HIGH VOLTAGE (V
IH
)
> 2.0 V > 2.0 V
INPUT LOW VOLTAGE (V
IL
)
> 0.8 V > 0.8 V
INPUT CURRENT
230 µA maximum (V
IN
= 2.7 V) < 70 mA
(V
IN
= 5.0 V) < 1 mA
(V
IN
= 0.0 V) < 1 mA
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