Specifications
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Page 22
ACS253A-CT
Chapter 3: Installation
3. Installation
For first-time users, we recommend that you carry out a test placement, confined to a single room, before commencing full
installation. This will allow you to identify and solve any cabling problems, and experiment with the KVM extender system more
conveniently.
Your package should include the items listed in Section 2.5 of this manual.
3.1 Interconnection Cable Requirements
To connect the Local and Remote units, you will need:
• CATx models: S/UTP (CAT5) cable according to EIA/TIA 56A or TSB 36 or Digital STP 17-03170. Four pairs 24 AWG. Pinout
according to EIA/TIA 568A (10BASE-T). Screen must be connected on both ends. Make sure that the connection is tension-free.
• Multimode models: Two 50-μm or 62.5-μm fibers.
• Single-mode models: Two 9-μm fibers.
• Power Supply
Connect the supplied 6-VDC power supplies to the plug terminal on the rear of both local and remote units.
USB devices have an additional power supply. You need to attach this power supply to the remote unit if the total power
consumption of the attached USB devices exceeds 500 mA (see Appendix E).
3.2 System Setup
To install your DVI KVM Extender system:
1. Switch off all devices.
2. Connect your keyboard, monitor(s), and mouse to the remote unit as shown in the diagrams in Chapter 2: Figure 2-1
(ACS253A-CT), Figure 2-3 (ACS253A-SM/MM), or Figure 2-5 (ACS253A-U-SM-R2/MM-R2).
NOTE: These ports may also be attached to the CPU side of a KVM switch to have a remote CPU. However, if you are attempting
to use the extender between cascaded KVM switches, this may not work. Contact Black Box Technical Support
at 724-746-5500 or info@blackbox.com to discuss your application.
3. C onnect the interconnect cable to the interconnect socket(s) (Component #13 in Chapter 2: Figure 2-2 [ACS253A-CT], Figure
2-4 [ACS253A-SM/MM], or Figure 2-6 [ACS253A-U-SM-R2/MM-R2]).
4. Connect the 6-V power supply to power the unit.
NOTE: Only use the power supply originally supplied with this equipment or a manufacturer-approved replacement.
5. Using the supplied CPU KVM cable(s), connect the keyboard, monitor(s), and mouse connectors on the computer (or KVM
switch) to the corresponding connectors on the local unit as shown in Figure 2-2 (ACS253A-CT), Figure 2-4 (ACS253A-SM-R2/
MM-R2), or Figure 2-6 (ACS253A-U-SM-R2/MM-R2).
Make sure that you attach the keyboard and mouse connectors to the correct ports. The keyboard connector is purple; the
mouse connector is green.
6. For a dual access system, connect the keyboard, mouse, and monitor for the local console to the appropriate ports on the local
unit. The ports may also be used to feed into a KVM switch.
7. Connect the interconnection cable from the remote unit to the interconnect socket on the local unit as shown in Figure 2-1
(ACS253A-CT), Figure 2-3 (ACS253A-MM/SM) or Figure 2-5 (ACS253A-U-MM-R2/SM-R2).
8. Power on the system.










