Black Box ACS253A Specifications

1

Twisted-pair version
lets you select
Category 5, 5e, or 6
cable.

Fiberoptic versions
available for duplex
multimode or duplex
single-mode.

Access video
equipment locally and
remotely.

Upgradable firmware.

PS/2 cables and
adapters are included.

Each extender
includes a local and
a remote unit.

S

uppose you have a PS/2®CPU

at one location, but need dual
access to it (from either a local or
a remote PS/2 keyboard, DVI
monitor, and PS/2 mouse). The
ServSwitch™ DVI/VGA Fiber
CATx (twisted-pair), Multimode
(fiber), or Single-Mode (fiber)
Extenders are ideal for any KVM
application that demands flexible
video connections and
exceptional video quality. With
these extenders, you get video
resolution at the local console of
up to 1600 x 1200 for VGA or 1280 x
1024 for DVI.

A PS/2 console is defined as a
PS/2 keyboard/video/mouse
combination. When the keyboard
and mouse are being used at one
PS/2 console, the extender blocks
access at the other console until
there is no keyboard or mouse

Access a PS/2 CPU via local or remote

consoles over CATx or fiber optic cable.

Key Features

SERVSWITCH DVI/VGA FIBER EXTENDERS

activity for a defined timeout
period.

CATx twisted-pair cable is
defined as either CAT5, CAT5e, or
CAT6. Extend the distance from
your PC up to 300 ft. (91.4 m) using
CATx cable and a CATx extender.

For greater distances between
consoles and the CPU, choose the
fiber optic extender models.
There’s one for multimode and
another for single-mode cable.
The multimode model lets you run

62.5/125-µm cable up to 650 ft.
(198.1 m) between local and
remote units, or connect 50/
125-µm cable up to 1300 ft.
(396.2 m). And by using fiber
cable, you get all its benefits,
including immunity to electrical
interference.

The single-mode version
enables 9/125-µm connections up

to 6.25 mi. (10.1 km) apart.

All models include a local unit
(transmitter) and a remote unit
(receiver). Connect the local unit
to the computer’s CPU or server
directly with the included PS/2
cable, and attach the KVM
console to the remote unit.

DVI and VGA adapters are
also included.

The extenders work best with
DVI (Digital Visual Interface) video
displays. However, they also work
with VGA displays, too, with an
adapter cable.

Diagnostic LEDs on both local
and remote units tell you link
status, when the devices are
ready, and when the units detect
a video signal or valid mode.
There’s also an LED to indicate
communication errors.

Black Box Corporation • 1000 Park Drive • Lawrence, PA 15055-1018 • Tech Support: 724-746-5500 • www.blackbox.com • e-mail: [e-mail]

© 2004. All rights reserved.

Black Box Corporation.

3/8/2004 #11213

2

Typical Application

Remote DVI

monitor

Remote PS/2

mouse

Remote PS/2

keyboard

Remote unit

CPU’s DVI

monitor

ServSwitch DVI/VGA Fiber CATx

Extender (ACS253A-CT)

ServSwitch DVI/VGA Fiber CATx

Extender (ACS253A-CT)

CATx cable

Local console’s

keyboard

Local

mouse

Local unit

CPU with video

card installed

Video Compatibility: Analog:

VGA to XGA (separate sync,
Composite sync, or sync-on­green);

Digital: DVI

Video Resolution (Maximum):

Monitor:

VGA: 1600 x 1200 at 60 Hz;
DVI: 1600 x 1200 at 60 Hz;

Local access: VGA: 1600 x 1200;

DVI: 1280 x 1024

Distances (Maximum):

CATx: 300 ft. (91.4 m);
Multimode:

62.5 µ: 650 ft. (198.1 m);
50 µ: 1300 ft. (396.2 m);

Single-mode: 9 µm: 6.25 mi.

(10.1 km)

Fiber Optic Beam Divergence:

ACS253A-MM: 12º;
ACS253A-SM: 4º

Fiber Optic Wavelength:

ACS253A-MM: 850 nm;
ACS253A-SM: 1300 nm

Fiber Optic Total Output Power:

ACS253A-MM:

< 400 µ W (as defined by IEC:

50-mm aperture at 10-cm
distance);

< 70 µ W (as defined by FDA:

7-mm aperture at 20-cm
distance);

ACS253A-SM:

< 2000 µ W (as defined by IEC:

50-mm aperture at 10-cm
distance);

< 180 µ W (as defined by FDA:

7-mm aperture at 20-cm
distance)

Receiver Typical Sensitivity

(Average Power):

ACS253A-MM: -20 dBm

(-17 dBm maximum);

ACS253A-SM: -22 dBm

(-20 dBm maximum)

Receiver Optical Budget Total:

ACS253A-MM: -14 dBm

(-6.5 dBm minimum);

ACS253A-SM: -18 dBm

(-8 dBm minimum)

Specifications

Transmitter Typical Launch Power

(Average) Into Fiber:

ACS253A-MM:

50 µ or 62.5 µ: -5 dBm
(-9.5 dBm minimum);

ACS253A-SM: 9 µ: -3 dBm

(-11 dBm minimum)

Connectors: AC253A-CT: Local unit:

(1) RJ-45 (CPU input);

Remote unit: (1) RJ-45;

ACS253A-MM, ACS253A-SM:

Local unit: (1) pair of SC;
Remote unit: (1) pair of SC;

Video: Both local and remote

units: (1) DVI-I M (for both DVI
and VGA connections);

Programming: Both local and

remote units: (1) RJ-11

Indicators: (4) LEDs on both local

and remote units:
(1) Communication Error (flashing

indicates errors detected);

(1) Link Status (flashing indicates

interconnection cable is not
connected or not functioning);

(1) Device Ready (on indicates

device is ready);

(1) Video Signal (on indicates a

video signal or valid mode is
detected)

Temperature Tolerance: Operating:

50 to 113ºF (10 to 45ºC);

Storage: 23 to 131ºF (-5 to +55ºC)

Humidity Tolerance: 80%,

noncondensing

Power: 90–240 VAC, 47–63 Hz,

autosensing, external

Size: Each local and remote unit:

5.2"H x 6.7"W x 1.7"D
(13.2 x 17 x 4.3 cm)

Weight: Each local and remote unit:

2.2 lb. (1 kg)