apologies for a question that's more hardware-related than networking
I have a D-Link DGS-1216T Ethernet switch, in a 19"/1U chassis - and
I'd like to
remove the lid off that one. Warranty and my reasons aside - I'm not
reverse-engineer anything, nor am I particularly interested what's
I'd like to mod my switch a tiny bit - a tiny bit missing to
The trouble I'm facing is, that the hood seems to be firmly attached
base part of the chassis, along the upper rear edge - as if spot-
or glued together. There are some three relevant bolts on the box'es
along the front lower edge - but even if I unscrew those, miraculously
the two parts of the box stick together along that upper rear edge.
Any details on how to gracefully detach that joint would be
An authorised D-Link service center has declined comment,
and I'm not gonna brute-force the box open...
yes of course, those are the usual tricks :-)
This case isn't made of plastic (the usual sort with rubber feet
hiding screw heads),
it's made of neat steel brass with black paint finish. No stickers on
it, no visible
hints of fittings riveted or spot-welded on the inside, no more
Thanks for your message though :-)
Hehe - bought another piece, tried again, and voila - the box is open.
All it took was a little bit more violence. There's a massive spring
spot-welded to the hood along the upper rear edge of the chassis,
holding onto a flange on the base part of the chassis. After removing
the five bolts, just pull the hood forward firmly enough (careful,
slowly) to make the spring let go. Wash your hands with some soap to
make them squeak-clean against the polished chassis surface :-) You
won't make it with sweaty hands.
Careful when putting the hood back on - the SFP slot shields are
fragile and you need to align them with the holes in the front panel
fairly precisely, while struggling to press the springy clamp back
On the inside, the box looks like a pretty clean design.
I'm delighted that the PSU and even the onboard step-down switch-mode
regulators are the first in the airflow path inside the box, so that
they're getting the coolest air. This means that their electrolytic
caps will have a long life. I've recently revived several smaller dumb
100meg switches (fanless) by replacing an elyt cap or two (+ some
additional tweaks to the ventilation / heatsinks).
The neat Marvell chipset probably explains why there are several
similar Web-smart products currently on the market (though they seem
to have some slightly different features). The gigabit switch matrix
chip provides all the essential features in hardware: 802.1q, 802.1p,
802.1x, flow control (better keep that one turned off).
The control CPU/SoC chip used (88E6218) has caught my eye: an ARM9e
core, embedded 100Mbps 6port switch, one of the ports has on-chip PHY.
Originally designed for stand-alone use in SoHo routers with an
integrated 100Mbps switch. Makes me think that if D-Link added an
additional 100Mbps RJ45 socket (WAN uplink port) on the front panel,
the box could be firmware-upgraded to include a 100Mb router/firewall
for SoHo broadband internet access :-)