ThinkPad Advanced Mini-Dock, Type 2504 (250410U)
This is a proprietary docking station for models with a CS05 standard docking port.
Features
Pass-through
- 1x PS/2 (Mini-DIN 6, keyboard+mouse) port
- 4x USB 2.0 (Type-A) port
- 1x Modem (RJ-11) port
- 1x Ethernet (RJ-45) port
- 1x DVI-D (dual-link) out port2 3
- 1x VGA-out (DE-15) port
- 1x Parallel (DB-25, ECP/EPP/SPP) port4
- 1x Serial (DE-9, RS-232) port4
- 1x S/PDIF (RCA) port
- 1x Headphone port (3.5mm, TRS)
- 1x Microphone port (3.5mm, TS)
- 1x DC-in (barrel) socket
Non-pass-through
- 1x Proprietary key lock (secures the laptop to the dock)
- 1x Kensington security lock slot
Resources
- Any model that is powered-on and attached to this docking station will shut down immediately, due to a stray electrostatic discharge that is caused by insufficient insulation. The solution to this problem, is to either turn off the laptop and dock it, or attach two rubber caps (FRU: 42W3219/42W3220) on two of the furthest 'EMI fingers' located on the docking station. More information regarding this problem can be found here.
- This port will not work on models with a GMA 900, as it does not support any form of DVI output.
- This port will be inactive on models equipped with the Switchable Graphics feature, unless the Radeon HD 3470/3650 is enabled and is in use. This is due to the DVI connection being wired to only accept output from the dedicated GPU.
- If the docking station loses AC power (from the AC adapter), these ports will cause the attached laptop to soft-lock. You can prevent this from occurring by disabling the serial and parallel port in the BIOS (Config > Docking Station > Legacy Devices on Mini-Dock > Disabled). There is no official fix, even Lenovo themselves state that this is the only way.
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