Acces 104-QUAD-8, User Manual

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Manual 104-QUAD-8 21
Chapter 7: Specification
Power Consumption

+ 5 Volts 260mA (typical, no load on +5V fused output pins)
+ 5 V Fused Outputs Two 0.5A Resettable fuses
Input Section

Receiver Type AM26LS32

Configuration per Encoder Phase A, Phase B and Index as Differential Pairs

Number of Channels 8

Common mode input range +/- 7 V maximum

Differential Input Range +/- 25 V maximum
Differential voltage values are at the noninverting (A)
input terminals with respect to the inverting (B) input
terminals.

Sensitivity +/- 200 mV

Hysteresis 50 mV typical

Impedance 12
kΩ minimum

Bias
(Positive pins) +5V via 4.7kΩ pull ups
(Negative pins) +2.5V via pull up/down combo

Options Differential filter 12
0Ω in series with 4700pF
Counter Section

Counter Type: LS7266R1 24 bit Dual Axis Quadrature Counter

Quadrature Clock Frequency 4.3 MHz maximum

Quadrature Separation 57 ns min

Quadrature Clock Pulse Width 115 ns min

Index Pulse width 85 ns min

Filter Clock (FCK) PC/104 Bus OSC 14.318 MHz
(Optional 33.300 MHz oscillator available)
Interrupt Controller Section

Controller Type CPLD

Interrupts Jumper selectable (2-7,10-12,15)

Interrupt Sources FLG1 outputs from LS7266R1s

Addressing ISA bus address is set by jumpers (100-3E0h)
Environmenta
l

Operating Temperature: 0

C to +70

C (optional -40

C to +85

C)

Storage Temperature: -50

C to +120

C

Humidity: up to 95% RH, non-condensing