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A. Technical Reference
Specifications
• Bus interface: 32-bit PCI
• Number of ports: 4
• I/O address: Assigned by PCI BIOS
• IRQ: Assigned by PCI BIOS
• Data bits: 5, 6, 7, 8
• Stop bits: 1, 1.5, 2
• Parity: None, even, odd, space, mark
• UART: Moxa UART (16C550C or compatible)
• Speed: 50 bps to 921.6Kbps (CP-104UL v2)
50 bps to 230.4Kbps (CP-104UL v1)
• Connectors: DB44 female
• Data signals: RS-232－TxD, RxD, RTS, CTS, DTR, DSR, DCD, GND
• Surge protection: Embedded 15KV ESD
• Operating temp: 0 to 55℃
• Power Requirement 120 mA max. (+5V) (CP-104UL v2)
231 mA max.( +5V) (CP-104UL v1)
• Dimensions: 120 × 64.5 mm (4.72 × 2.54 in) (CP-104UL v2)
120 × 64.5 mm (4.72 × 2.54 in) (CP-104UL v1)
PCI
The 32-bit Smartio CP-104UL boards comply with PCI specifications 2.1. Hardware configuration
for IRQ and I/O addresses is automatically assigned by the PCI BIOS. Hence, you must first plug
in the board before installing the software driver.
Unlike ISA slots, different PCI slots in the same PC may have different bus numbers and device
numbers with respect to the PCI specifications. The same PCI board will have different system
configurations if moved to a different PCI slot. This is called slot-sensitive or slot-dependent, and
may apply to PCI slots in PCs with different motherboards, which might use different device
number sets. For example, some use 17, 18, 19, and 20 for identifying the respective PCI slots,
whereas some use 11, 12, 13 and 14.
Due to this slot-dependency, it is necessary to re-configure the software driver once the board is
plugged into a different PCI slot.
Up to 4 Smartio CP-104UL boards can be installed in one system. When installing more than one
board, remember the order of boards to distinguish the installed boards.
MOXA UART
The MOXA UART is an intelligent asynchronous controller that supports one full duplex channel
that simultaneously transfers data at a transmission speed of 921.6Kbps. To increase overall data