PCIe (PCI Express)
Most newer motherboards are being manufactured using a combination of PCI and PCI Express (PCIe) slots. The most common PCI Express (PCIe) slot sizes are x1 and x16. All ACCES PCI Express (PCIe) cards use the x1 slot but can also be installed into larger slots. For example, you can install a PCI Express (PCIe) x1 card into an x16 slot (but it will operate at the x1 speed). The x1 slots are typically general purpose and the x16 slots are used for video or other high performance cards.
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PCI Express (PCIe) is a needed development in the area of computers. An evolution of the PCI bus, PCI Express (PCIe) will eventually replace PCI, PCI-X, and AGP motherboard slots. All ACCES PCI Express (PCIe) products will fit into any PCI Express (PCIe) slot. Although AGP has expired, standard PCI will still be around for some time. Expect to see at least 1 or 2 standard PCI slots along with PCI Express (PCIe) in most motherboards for the next few years.
The PCI Express (PCIe) bus is high-speed (2.5 Gb/s) serial (point-to-point) replacement of the older, shared, parallel PCI/PCI-X bus. Unlike PCI, which shares bandwidth with all devices on the bus, each PCI Express (PCIe) device receives dedicated bandwidth. At the software-level, PCI Express (PCIe) preserves compatibility with PCI; a PCI Express (PCIe) device can be configured and used in legacy applications and operating-systems which have no direct knowledge of PCIe's newer features. Although software may remain transparent, the physical connection (slot) is entirely different from those of the older standard PCI or PCI-X slots.
Each lane of a PCI Express (PCIe) connection contains two pairs of wires, one to send and one to receive. Data is sent serially in packets through pairs of transmit and receive signals called lanes. Since PCI Express (PCIe) is a serial based technology, data can be sent over the bus in two directions at once. A x1 connection, the smallest PCI Express (PCIe) connection, has one lane made up of four wires, a x4 link has four lanes and contains 16 wires, and so on. Other common configurations are x8 and x16.
| SERIAL PORTS | OPTIONS | ||||||||
| Products | RS-232 | RS-422 | RS-485 | Baud | PROT CFG | Isolation | LRG FIFO | Connector | RoHS |
| PCIe-COM232-8 |
8 |
|
|
921.6k |
|
128-Byte |
Cabled DB9 |
|
|
| PCIe-COM232-4 |
4 |
|
|
921.6k |
|
Yes |
Cabled DB9 |
|
|
| PCIe-COM-8S Coming Soon! |
|
8 Software Selectable |
921.6k |
EEPROM |
Yes |
|
|
||
| PCIe-COM-8SM |
8 Software Selectable |
921.6k |
EEPROM |
Yes |
Cabled DB9 |
|
|||
| PCIe-COM-2SM In Development! |
2 Software Selectable |
921.6k |
EEPROM |
Yes |
|
|
|||
| PCIe-COM485-8 | 8 | 921.6k | EEPROM | 128-Byte | Cabled DB9 |  |
|||
| PCIe-COM422-8 | 8 | 921.6k | EEPROM | 128-Byte | Cabled DB9 | |
|||
| PCIe-COM-4SM | 4 Software Selectable | 921.6K | EEPROM | 128-Byte | Cabled DB9 | |
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| PCIe-COM-4SMRJ | 4 Software Selectable | 921.6k | EEPROM | 128-Byte | RJ-45 | |
|||
| PCIe-COM-4SMDB | 4 Software Selectable | 921.6k | EEPROM | 128-Byte | DB9 | |
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| PCIe-ICM-4SM | 4 Software Selectable | 921.6k | EEPROM | YES | 128-Byte | DB9 | |
||
| PCIe-COM-4SRJ | 4 Software Selectable | 921.6k | EEPROM | 128-Byte | RJ-45 | |
|||
| PCIe-COM-4SDB | 4 Software Selectable | 921.6K | EEPROM | 128-Byte | DB9 | |
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| PCIe-ICM-4S | 4 Software Selectable | 921.6k | EEPROM | YES | 128-Byte | DB9 | |
||
| PCIe-COM485-4 | 4 | 921.6k | EEPROM | 128-Byte | Cabled DB9 | |
|||
| PCIe-COM422-4 | 4 | 921.6k | EEPROM | 128-Byte | Cabled DB9 | |
|||
| PCIe-COM232-4 | 4 | 921.6k | 128-Byte | Cabled DB9 | |
||||
| PCIe-COM232-4RJ | 4 | 921.6k | 128-Byte | RJ45 | |
||||
| PCIe-COM232-4DB | 4 | 921.6k | 128-Byte | DB9 | |
||||
| PCIe-ICM232-4 | 4 | 921.6k | YES | 128-Byte | DB9 | |
|||
| PCIe-COM-2SMRJ | 2 Software Selectable | 921.6k | EEPROM | 128-Byte | DRJ45 | |
|||
| PCIe-COM-2SMDB | 2 Software Selectable | 921.6k | EEPROM | 128-Byte | DB9 | |
|||
| PCIe-ICM-2SM | 2 Software Selectable | 921.6k | EEPROM | YES | 128-Byte | DB9 | |
||
| PCIe-COM-2SRJ | 2 Software Selectable | 921.6k | EEPROM | 128-Byte | RJ45 | |
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| PCIe-COM-2SDB | 2 Software Selectable | 921.6k | EEPROM | 128-Byte | DB9 | |
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| PCIe-ICM-2S | 2 Software Selectable | 921.6k | EEPROM | YES | 128-Byte | 128-Byte | |
||
| PCIe-COM232-2RJ | 2 | 921.6k | 128-Byte | RJ45 | |
||||
| PCIe-COM232-2DB | 2 | 921.6k | 128-Byte | DB9 | |
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| PCIe-ICM232-2 | 2 | 921.6k | YES | 128-Byte | DB9 | |
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| PROT CFG = protocol configuration LOW PROF = low profile form factor * MD1 = smallest PCI/PCIe low-profile specification = Optionally available RoHS Ready |
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| Products | # I/O | Buf | Prog | OPTOs | Relays | CTRS | COS | RoHS |
|---|---|---|---|---|---|---|---|---|
| PCIe-DIO-48S |
48 I/O |
Yes |
Yes |
|
|
|
Yes |
|
| PCIe-DIO-48 |
48 I/O |
Yes |
Yes |
|
|
|
|
|
| PCIe-DIO-24S |
24 I/O |
Yes |
Yes |
|
|
|
Yes |
|
| PCIe-DIO-24D | 24 I/O | Yes | Yes | No | |
|||
| PCIe-DIO-24DC | 24 I/O | Yes | Yes | Yes | No | |
||
| PCIe-DIO-24DS | 24 I/O | Yes | Yes | Yes | |
|||
| PCIe-DIO-24DCS | 24 I/O | Yes | Yes | Yes | Yes | |
||
| PCIe-IIRO-16 |
16 In and 16 Out |
Yes |
|
Yes |
Yes |
|
Yes |
|
| PCIe-IIRO-8 | 8 In and 8 Out | Yes | Yes | Yes | Yes | |
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| BUF = Buffered I/O PROG = Programmable I/O CTRS = Counters/Timers COS = Change Of State detection * Low Profile = Optionally available RoHS Ready |
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