JetCard 1608 Overview
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Overview
Specifications
Ordering Information
 Datasheet
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8 Ports RS-232/422/485 PCI-104 Card
- Support 32 bit PCI-104 bus
- Two DB37 connectors to support four RS-232/422/485 ports
- One internal box header for four internal RS-232 ports
- Built-in 15KV ESD protection
- Supports on-board automatic software flow control
- Up to 921.6Kbps high speed data transmission
- -25~70oC operating temperature for hazardous environment application
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The JetCard 1608 is a high performance octad asynchronous serial port card in PCI-104 format and is designed for both RS232 and high RS422/485 that is used in long distance industrial applications. JetCard 1608 PCI-104 bus support both +3.3V and +5V slot. The easy-to-install driver that come with JetCard make it easier for you to set up your complex system. And with its 15KV ESD surge protection, and overload current/voltage protection, JetCard 1608 is ideal for industrial applications in severe environments and is your best choice for applications in building automation, security, retail POS systems, billboard broadcasting, and telecom management.
PCI-104 Bus
The PCI-104 form factor supports the PCI bus. The maximum configuration for the PCI bus of PCI-104 modules is four plus the Host Board.
High Performance
The JetCard 1608 uses one Oxford OXmPCI954 chip and one 16C954 chip to provide 8 serial ports. Each UART channel in the JetCard offers data transmission speed up to 921.6 Kbps, and bi-directional 128-byte FIFO for each port. Deep FIFO can reduce the CPU’s loading, saving CPU’s resources for other important tasks. This chip allows JetCard to be compatible with the widely-used industry-stantard 16C950 devices and PCI-104 bus.
In additional to high speed of 921.6 Kbps and 128-byte FIFO, Oxford chip also equips JetCard with on-chip flow control function. Instead of using a driver on the PC to control the traffic flow, JetCard uses the on-chip flow control function to react directly without waiting for the PC to respond. In this way, the respond time and the loading of the CPU can be largely reduced and your system performance can be greatly enhanced.
JetCard also comes with on-chip automatic flow direction switching technology. Under a multi-drop 2-wire RS-485 mode, the timing for switching between idle mode (data not being transmitted) and active mode (data being transmitted) must be precise and accurate. With this technology, JetCard can effectively increase RS-485 transmission performance, and largely relieve the PC from the burden of using the driver to switch modes.
Dimensions (Unit -mm)
PIN Assignments
RS232/422/485 DB9 Male |
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Pin |
RS-232 |
RS-422 |
RS-485
4 wires |
RS-485
2 wires |
1 |
DCD |
TxD-(A) |
TxD-(A) |
Data-(A) |
2 |
RxD |
TxD+(B) |
TxD+(B) |
Data+(B) |
3 |
TxD |
RxD+(B) |
RxD+(B) |
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4 |
DTR |
RxD-(A) |
RxD-(A) |
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5 |
GND |
GND |
GND |
GND |
6 |
DSR |
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7 |
RTS |
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8 |
CTS |
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9 |
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RS232/422/485 DB25 Male |
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Pin |
RS-232 |
RS-422 |
RS-485
4 wires |
RS-485
2 wires |
2 |
TxD |
RxD+(B) |
RxD+(B) |
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3 |
RxD |
TxD+(B) |
TxD+(B) |
Data+(B) |
4 |
RTS |
RTS+(B) |
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5 |
CTS |
CTS+(B) |
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6 |
DSR |
RTS-(A) |
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7 |
GND |
GND |
GND |
GND |
8 |
DCD |
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TxD-(A) |
Data-(A) |
20 |
DTR |
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RxD-(A) |
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22 |
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