Question about Compaq 242695-001 8-port KVM Switch

1 Answer

KVM Switch 4110 8 port

Hello,

As we have already installed Compaq KVM Switch 4110 (EC04-19921) in our 40 sites, now we are facing problem to connect IBM X3550 Server which has USB port, I try usb to PS/2 adapter as well as Aten USB/PS2 cable but not success, can you please help us how to do it workable.

Thanks & Best Regards,

Hafiz-ur-Rehman

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  • Compaq Master
  • 1,018 Answers

So is the KVM (control side, PS2 mouse / kbd>??)
or are all PS2 ports wired to adaptors,? i cant guess this nor what was used before, no history stated.
what was there before, this act?
and what now?
Ill assume worse cases (tossed a coin)
18 (16+2) adapters now. all devices are USB but KVM
ok.?


what mode fails, both the KVM pushbotton switch and or the hot key commands on the kbd?
Oops no manual button as seen on modern KVM.

KVMs are very complex. the hard part is the vast number of different PC.
USB , PS2, VGA, DVI and HDMI.. yah,..
OK 16 +2=18 x ps2, and 9 VGA ports. it is.
NO KVM does it all, ,, old KVM' do NOT work , on new computers, all folks know this , if they tried. or took readings to learn why it fails.
I bet power to the KVM is dead., no LED./
no manual button ,oops.
pin 4 PS2 reads 5vdc and connected up, same?
we use breakout boxes (DIY) to test ports connected.'

that Compaq is very old and no support now, no books.
why not ask at real HP, maybe some old guy there can dig it lost books>
40 KVM? that what you said, really? (or 40/8=5 kvm)?
my guess is the adaptor does not work or power issues
KVM >>PS2>>>ADapt>>> USB.(server) (usb 1,2,or 3 at server?)
The KVM in most cases, here, steals power from PS2 ports but not this KVM , its better.
i'd bet that adaptor cant do that.
(is the caps lock key working on the KBD and laser LED glowing on said mouse?

ask here, real HP.
lets see tests:
1: pin 4 ps2 5vdc?
2: mouse glows?
3: keyboard led , caps lock toggles? (glows)
4: lost the hot key commands (y/n)

one other problem is the BIOS in the server may not like your adaptor at all. When BIOS scans the keyboard. it expects a ID response if missing or grabled, it drops that device port.


https://h30434.www3.hp.com/


btw, one way to cure this, is run headless server software
end KVM for ever.

i run a LAMP server, that comes in the box, no kvm no any thing on ports. it has a web page to go to and do service that way.
port IP+:12321
modern ways work best.
in a server farm, a keyboard/mouse/monitor on rolling cart
for the super sick servers is best...

the other problem is USB only PC or server
does not scan PS2 ports, it has none
so if the adaption fails, at boot time, all is lost.
(BIOS reports connected devices to the OS)(unstated by you)so if the report fails, problems happen
for sure after the boot.

this device is s business device, now ("Enterprise)
the posts on it are like 10 years ago. all links to books now dead.
infact the compaq server that had them is turned off. (grin)
here is my search there. Why not ask them?




https://www.hpe.com/us/en/search-results.html?client=&qt=kvm+4110&search=%EF%98%90&cc=us&charset=utf-8&hpa=http%3A%2F%2Fwww8.hp.com%2Fus%2Fen%2Fhpe%2Fcontact%2Fcontact.html&hpn=Home&hpr=http%3A%2F%2Fh41131.www4.hp.com%2Fus%2Fen&hps=Home&lang=en&qp=url%3Ah41131.www4.hp.com%2Fus%2Fen+url%3ANEW+URL+GOES+HERE

Posted on Aug 26, 2017

  • Larry Ng
    Larry Ng Aug 26, 2017

    the good news is, it has its own power supply
    in like most cheap consumer KVM
    in an amazing deal bad, here is no power on LED. saving COmpaq 3 whole cents.wow.
    no LED.
    no manual switch either, wow2
    its totally at the COMMAND of the KEYBOARD.
    hot keys,
    the keyboard, does it have power, via that adapter.? try lower powered keyboards
    that PS2 port on most KVM can not create
    USB power correctly. 100ma , 500m are the 2 common levels.
    and if say the key board needs 200ma.
    then how can any PS2 jack do that.
    learn that PS2 jacks have a current limiting
    resistor on that power pin,
    the spec, on jack is 275mA, guess what./
    vast numbers of systems could not do that.
    and was restricted by the maker, (for there reasons) why not measure that pin?
    pin 5 is it at least 4.7vdc?
    https://en.wikipedia.org/wiki/PS/2_port

    finding and USB/PS2 adapter that can work.
    here.

    ive seen many a KVM PS2 fail just on power alone. it was never designed to run any USB bus. (power)

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SOURCE: Compaq 4110 KVM - reset Password

small hole in back stick a paper clip in it and while pressing button power on and hold foe 30sec this should do it

Posted on Dec 20, 2007

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SOURCE: Password reset for ATEN kvm switch

If you are unable to perform an Administrator login (because the Username and
Password information has become corrupted, or you have forgotten it, for
example), there is a procedure you can use to clear the login information.
To clear the login information do the following:
1. Power off the CN8000 and remove its housing.
2. Use a jumper cap to short the jumper on the mainboard labeled J6.
3. Power on the switch.
4. When the front panel LEDs flash, power off the switch.
5. Remove the jumper cap from J6.
6. Close the housing and power on the CN8000.
After you start back up, you can use the default Username and Password (Login: administrator, pass: password).


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SOURCE: I have an ATEN KVM

try login: administrator Pass: password

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SOURCE: KVM PS/2 using a USB keyboard

Yes it should work.

Posted on Apr 03, 2010

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