4
Secure COMBO KVM Switch with Dedicated CAC Port and 4K Ultra-HD Support
WHAT’S IN THE BOX?
PART NO.
Q-TY DESCRIPTION
CK4-HPD404C 1
4-Port Secure Pro SH DVI, SH HDMI, and DH DP KVM w/audio and CAC, PP 4.0
PS12VDC3A
1
12V DC, 3A (minimum) power adapter with center-pin positive polarity
1
User Manual
CK4-HPD404C Rear Panel
SECURITY FEATURES
ANTI-TAMPER SWITCHES
Each model is equipped with internal Anti-Tamper switches, which sense attempts to open the device
enclosure. Once the system identifies such an attempt, all the front panel LED’s will flash rapidly,
the internal buzzers will beep, and the unit will become useless by shutting off connection with all
attached PCs and peripherals disabling any functionality.
TAMPER-EVIDENT SEAL
The enclosure of the unit is protected with a tamper-evident seal to provide visual evidence showing if
the unit has been opened.
PROTECTED FIRMWARE
The controller of the unit has a special protection feature that prevents reprogramming or reading the
firmware.
HIGH ISOLATION ON USB CHANNELS
Opto-isolators are used in the unit to keep USB data paths electrically isolated from each other,
providing high isolation and preventing data leakage between ports.
SECURE EDID EMULATION
The unit prevents unwanted and unsecure data from transmitting through the DDC lines by means of
secure EDID learning and emulation.
SELF-TEST
A self-test is performed each times the KVM is powered on as part of its boot-up sequence. If the
KVM starts up correctly and is functional, the self-test has passed. However, if all Front Panel LED’s
are on and not flashing, the power up self-test has failed and all functions are disabled. Check if any
of the front panel port selection buttons are jammed. In this case, release the jammed button and
recycle the power.
