CompuLab SBC-X270 Bedienungsanleitung PDF herunterladen (Seite 11)

SB-X270 PC/104+ Single Board Computer

CompuLab LTD.

3. Connector Description

The SB-X270 uses the attached CM-X270 module to implement most of the provided

functions. For these functions, the SB-X270 routes the signals from the CM-X270’s

miniature connectors to the standard connectors. The function’s description is therefore

provided in the CM-X270 Reference Guide. The section below provides only the

description of the external interface connectors. The subsequent section provides the

specifications of those functions implemented on the SB-X270 itself.

3.1. COM-A Connector on Front Panel (P27)

RJ-11 6-pin connector, compatible with a standard RJ11 / DB9 cable (available from

CompuLab). RS-232 level Rx/Tx/RTS/CTS are provided, other modem control lines are

not available. This connector is available only with the front panel option.

Pin Name Pin Name

1 COM-A-RTS# 2 GND

3 COM-A-TX 4 COM-A-RX

5 GND 6 COM-A-CTS#

3.2. COM-C Header (P21)

2x5, 100 mil header, compatible with a standard DB9 cable/connector. RS-232 or TTL

levels, depending on assembled option. Includes modem control lines.

Pin Name Pin Name

1 COM-C-DCD# 2 COM-C-RX

3 COM-C-TX 4 COM-C-DTR#

5 GND 6 COM-C-DSR#

7 COM-C-RTS# 8 COM-C-CTS#

9 COM-C-RI# 10 -

COM-C is also routed to the P16 header (see below) for interfacing RS485/422.

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CompuLab SBC-X270 Bedienungsanleitung Seite 11