Application and Configuration of ADLINK ECS-8582-4S Extension System

Application and Configuration of ADLINK ECS-8582-4S Extension System

In modern testing and measurement, industrial automation, and portable data acquisition applications, engineers often face the dilemma of laptops not being able to directly use PCI (Peripheral Component Interconnect) boards. The ECS-8582-4S ExpressCard to PCI expansion system launched by ADLINK enables laptops equipped with ExpressCard/34 slots to remotely control up to 4 standard PCI devices through the high-speed PCI Express (PCIe) interface, with a transmission distance of up to 7 meters. This article will provide you with a complete technical guide from the aspects of system architecture, installation configuration, hardware details, jumper settings, and troubleshooting.

System Overview and Working Principle

The core goal of ECS-8582-4S is to convert the ExpressCard interface of a laptop into a standard PCI bus, thereby driving external PCI cards. It consists of three main components:

EC-8560: ExpressCard/34 size host adapter card, inserted into the ExpressCard slot of a laptop.

PCI-8565: A low profile PCI adapter card installed in the expansion chassis, responsible for converting PCIe signals to PCI bus.

RK-8005 Expansion Chassis: Equipped with a 200W power supply, a 5-slot backplane (with 1 slot for PCI-8565 and 4 slots for user PCI cards), and a cooling fan.

Working principle: EC-8560 communicates with PCI-8565 through PCIe X1 link (bidirectional 2.5Gbps). PCI-8565 has a built-in PCIe to PCI bridge chip, which is a transparent bridge. Therefore, the host operating system can recognize PCI devices inside the chassis without installing additional drivers, as if they were directly plugged into the computer motherboard. The expansion cable adopts shielded twisted pair, supporting three lengths of 1 meter, 3 meters, and 7 meters, and signal integrity is not affected by distance.

Hardware specifications and key features

Key points of component specifications

EC-8560 ExpressCard/34 size, power consumption 3.3V/210mA, compliant with PCIe 1.0a and ExpressCard 1.2 standards

PCI-8565 low profile PCI card (64mm high), power consumption 3.3V/720mA, supports 5V and 3.3V PCI buses, 32-bit/33MHz

RK-8005 chassis size 122 × 195 × 259mm, weight 3.2kg, working temperature 0~50 ℃, 85~265VAC wide voltage input

Key features:

Completely hardware and software transparent, plug and play.

Supports PCI Bus Mastering and interrupt sharing.

Built in extension cable signal equalizer ensures long-distance transmission reliability.

The chassis provides wall mounted installation kits to adapt to various deployment environments.

Installation and wiring steps

1. Preparation of installation environment

Operate on an anti-static workbench and wear an anti-static wristband.

Ensure that the power cord of the chassis is plugged in but temporarily not powered on.

2. Install EC-8560 onto the laptop

Turn off the laptop and locate the ExpressCard slot (supports/34 or/54 specifications).

Tighten the specialized connector of the 3-meter extension cable (ALC-EXPRESS-3) onto EC-8560.

Insert EC-8560 into the ExpressCard slot. If using the ExpressCard/54 slot, the accompanying "Sustaining Rack" needs to be installed, which is a metal arm that is clamped at the back of the card and locked to increase connection stability.

3. Install the PCI card into the expansion chassis

Unscrew the four screws on the top cover of the computer case and open the top cover.

Insert the user's PCI card (half height size) into any available PCI slot (PCI1~PCI4), ensuring that the golden fingers are aligned and tightly pressed, and secure the baffle screws.

Cover the computer case and tighten the screws.

4. Connect the expansion cable

Connect the other end of the expansion cable to the PCI Express serial link interface (CN1 on PCI-8565) on the back of the chassis and tighten the fixing screw.

5. Power start stop sequence (extremely important)

Power on sequence: First turn on the power switch of the expansion case (power on the case), and then start the laptop.

Power off sequence: First turn off the laptop, then turn off the power of the expansion case.

Warning: If the expansion cable is disconnected or the chassis power is turned off while the laptop is running, it may cause system crashes or data loss. If there is a misoperation, it is necessary to reconnect the cable and restart both.

Hardware details and jumper settings

1. PCI-8565 layout and jumpers

The PCI-8565 mainly focuses on two jumpers:

JP1 (Remote Power Control): A 2-pin connector used to remotely control the chassis power supply (connect JP2 on the backplane to achieve remote ATX power switch). Default not connected. If remote power on is required, it can be short circuited or connected to an external switch.

JP2 (Spread Spectrum Clock Control): A 3-pin jumper used to enable or disable spread spectrum modulation of the PCI clock.

1-2 Short circuit: Enable Spread Spectrum to reduce system EMI peak.

2-3 Short circuit: Disable spread frequency (default). It is usually recommended to maintain the default unless encountering serious electromagnetic interference issues.

LED indicator light (D1): displays the status of the serial link, which lights up when the cable is connected correctly and both the host and the chassis are powered on.

2. BP-8005 Backplane Layout

The backplane provides 5 PCI slots (system slot+4 peripheral slots), and the system slot is pre installed with PCI-8565. It is strictly prohibited to insert any CPU card or other controller, otherwise it may damage the backplane or devices.

Key connectors:

CN2 (ATX power connector): 20 pin standard ATX power interface, connected to a built-in 200W power supply.

CN3 (fan connector): 3-pin, providing power to an 80mm fan (+12V).

CN4 (Power OK status): Provides PW-OK signal for ATX power supply for host monitoring.

JP2 (ATX power enable): 2-pin, short circuited to remotely turn on the power (in conjunction with JP1 of PCI-8565).

CN1/JP1 (LED connector): Used to connect the power indicator light on the front panel of the chassis.

All jumpers and connectors have clear silk screen printing, please wire them as needed.

Common problems and troubleshooting

Q1: What is the maximum extension distance?

Answer: The longest is 7 meters. Linghua provides three types of cables: 1-meter, 3-meter, and 7-meter (part numbers ACL-EXPRESS-1/3/7).

Q2: Do additional drivers need to be installed?

Answer: No need. Due to the use of a transparent PCIe to PCI bridge and native support of the operating system, no special drivers are required.

Q3: Can a host connect to multiple expansion enclosures?

Answer: PCIe is a point-to-point architecture, and one ExpressCard slot can only connect to one chassis. But theoretically, the PCI bus allows a maximum of 255 bus segments. If the host has multiple ExpressCard slots, it can be connected to multiple chassis separately, but is limited by BIOS and operating system.

Q4: What should I do if I encounter compatibility issues (such as unrecognized boards or resource conflicts)?

Answer: Compatibility issues mostly stem from the BIOS's allocation strategy for multiple PCI bridge resources. Suggestion:

Upgrade the laptop BIOS to the latest version.

Disable unnecessary onboard devices (such as parallel ports, serial ports, audio, etc.) in BIOS to free up resources.

Remove all non essential PCI devices (such as WiFi cards) inside the laptop.

Try inserting EC-8560 into different ExpressCard slots (if available).

Priority should be given to laptops with Intel 945, 965, or newer chipsets, as these chipsets provide better support for multiple PCI bridges.

Q5: Is the power capacity of the expansion chassis sufficient?

Answer: The chassis is equipped with a 200W power supply. In addition to PCI-8565 (approximately 2.4W), the remaining power can be used for 4 standard PCI cards (generally not exceeding 25W per card), but the total power consumption needs to be calculated to not exceed the rated power supply.

Q6: Can full-length PCI cards be used in the expansion chassis?

Answer: No. The RK-8005 chassis only supports half height (half length) PCI cards and cannot accommodate full-length cards.

Maintenance and safety precautions

The chassis should be placed in a well ventilated and dust-free environment to ensure the normal operation of the fan.

Regularly clean the ventilation holes of the chassis to prevent dust accumulation and overheating.

The bending radius of the cable should not be too small to avoid damaging the internal shielding layer.

If not used for a long time, the power should be cut off and the power plug should be unplugged.

The built-in power supply of the chassis has no switch and needs to be controlled by plugging and unplugging the power cord. Before powering on, it is necessary to confirm the voltage matching (100-240VAC).

Typical application scenarios

Portable testing platform: Engineers carry laptops and lightweight 4-slot chassis to complete tasks such as electronic manufacturing testing and signal analysis on site.

High density I/O system: By expanding the chassis and installing multiple data acquisition cards (such as analog input, digital I/O, counter cards), multi-channel synchronous acquisition can be achieved.

Remote control: In hazardous or space limited environments, place the chassis remotely and operate it in a safe area through long cables.

R&D debugging: No need to disassemble the desktop computer, directly use a laptop to debug the newly developed PCI board.