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SysLINK Hardware Manual
Page 13
Connecting Devices to the SysLINK
POS Terminal Port Option Card
The POS Terminal port is a phone line designed to function just like a standard wall-jack
analog phone line. It can connect dial-up devices like ATMs, M2M dial-up equipment, and
POS (Point Of Sale) terminals, with an internal modem, to the SysLINK, which then routes
data from the devices over the network. The SysLINK mimics the phone company,
answering incoming calls and routing them to an internal modem attached to each phone
line, or generating calls from an internal modem to an attached device.
The terminal lines and internal modems communicate up to 2400 baud and support the
following standards:
Bell 212A
ITU-T V.22
ITU-T V.22bis
V.22 FastConnect (Hypercom)
RS-232-only Serial Port Option Card
In the RS-232 definition, a pair of devices, one a terminal (Data Terminal Equipment or DTE)
and one a modem (Data Communication Equipment or DCE), are designed to plug directly
into each other. The SysLINK RS-232 serial port operates in DCE (modem) mode. The
following sections describe the pinouts and cabling options associated with this mode.
SysLINK DCE RS-232 Operation
Data Communication Equipment (DCE) mode is generally used to communicate with a
terminal device. This includes terminals, PC serial ports, printers and, generally, most
devices other than modems. When in DCE mode, the SysLINK port server family uses the
following pinouts:
