Encore 24 PORTS NWAY SWITCHING HUB User Manual download pdf (Page 27)

Specifications are subject to change without notice.

6222 User’s Manual Specifications 8-3

Counter Input

Channels ............................................................................. Up to 4 independent

Resolution ........................................................................... 32-bit

Input frequency ................................................................... 20 MHz maximum

Input characteristics ............................................................ 10 k Ω pull-down

Trigger level ....................................................................... TTL

Minimum pulse width ......................................................... 25 ns high, 25 ns low

Programmable modes ......................................................... Counter, Encoder

Encoder resolution .............................................................. x1 (default), x2, and x4

Encoder sources .................................................................. A, B, and Z; can be assigned to any digital pin x.

Counter source .................................................................... Internal Clock, Timer 1, Timer 2, and digital pin x.

One source can be used in multiple counters.

Counter mode options......................................................... Totalize, Clear on Read, Rollover, Stop at the Top,

Increment, Decrement, Rising Edge, Falling Edge

Counter gate options ........................................................... Unused, Internal Clock, Timer 1, Timer 2, and

Digital pin x. One gate can be used in multiple

counters.

Safety

Safety Voltages

Only connect voltages that are within these limits.

Channel-to-COM ................................................................ ±30V max

Isolation Voltages

Channel-to-channel ............................................................

Within each four-channel internal module .................. no isolation between channels

Between each four-channel internal module ............... 250V isolation

Note: There is no isolation between channels 1, 2, 3, and 4; no isolation between channels 5, 6, 7, and 8;

and no isolation between channels 9, 10, 11, and 12.

Channel-to-earth ground, continuous .......................... 250V

rms

, Measurement Category II

Note: Measurement Category II is for measurements performed on circuits directly connected to the electrical distribution

system. This category refers to local-level electrical distribution, such as that provided by a standard wall outlet

(for example, 115 V for U.S. or 230 V for Europe). Do not connect to signals or use for measurements within

Measurement Categories III or IV.

Environmental

The 6222 is intended for indoor use only but may be used outdoors if installed in a suitable enclosure.

Operating temperature ....................................................... -40 to 50°C

Storage temperature .......................................................... -40 to 85°C

Ingress protection ............................................................... IP 40

Operating humidity ............................................................. 10 to 90% RH, noncondensing

Storage humidity ............................................................... 5 to 95% RH, noncondensing

Maximum altitude .............................................................. 2,000 m (6562 ft)

Pollution Degree ................................................................ 2

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Encore 24 PORTS NWAY SWITCHING HUB User Manual Page 27

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