Black Box SERVSWITCH ACU1006DRA, Руководство пользователя

Страница: 46 / 116

45
CHAPTER 5: Configuration
5. Configuration
You might need to configure your Rackmount ServSwitch™ Brand CAT5 KVM
Extender system before you use it. The two-position DIP switches on the Micro
Remotes are external; see
Section 5.1 . All of the Extender’s other configuration
controls are internal, but should only need to be set once; see the relevant sections
starting with
Sections 5.2 . To get at them, first open the Local Hub or Remote by
unscrewing the screws on its case (five on each hub, four on each Remote Unit) and
lifting off the top half of the case. When you’ve finished setting the configuration
jumpers and switches as described in the rest of this chapter, close the hub or
Remote by replacing the top half of the case and screwing the screws back in.
CAUTION!
The Extender’s circuit boards can be damaged by static electricity, so take
every reasonable precaution against it. At least discharge yourself on a
metal surface before opening any Extender component; if possible, stand
on an anti-static mat and wear a grounding strap or anti-static gloves.
5.1 Setting the 2-Position DIP Switches on the Micro Remotes
There’s one two-position DIP switch on the bottom of the ACUMREM and
ACUWREM Micro Remote Units; there are six of these two-position DIP switches
on the bottom of the ACU1006MRA and ACU1006MRVA Micro Remote Hubs.
Position 1 governs the Micro Remote’s video equalization, while position 2 controls
how the Micro Remote handles keyboard-command recognition:
• Position 1 (video equalization): The Micro Remote contains video-equalization
circuitry which compensates for the loss in image quality that occurs when you
drive video across cables longer than 25 m (80 ft.). If you’ll be running cable
to such distances between your Local Hub and the Micro Remote, you need to
configure the Extender for extra equalization before you install it.
To do this, set position 1 of the Remote’s DIP switch for that link to UP
(OFF) if you’ll be running cable for that link up to (but not more than) 25 m
(80 ft.). To boost the equalization if you’ll be running cable between 25 and
50 m (80 and 160 ft.), move position 1 to the DOWN (ON) setting.
If you are not running the cable too far but your video looks bad no matter
how you set this DIP switch, the problem is almost certainly being caused by
one of two things. First, check your interconnect-cable routing—does the cable
pass close to a motor, generator, fluorescent lights, etc.? Second, check the
wiring of the interconnect cable. Compare its pinning and pairing with those
shown in
Appendix A . (Please realize that signal equalization cannot be exact;
regardless of the setting of this DIP switch, the remote video image might
never appear quite as sharp as it would appear with the monitor directly
attached to the CPU.)