244 | Aprisa LTE User Manual
RS-232 Asynchronous Interface
The Aprisa LTE router
’s ITU
-T V.24 compliant RS-232 interface is configured as a Cisco® pinout DCE. The
interface terminates to a DTE using a straight-through cable or to a DCE with a crossover cable (null modem).
The interface uses two handshaking control lines between the DTE and the DCE.
General
Interface
ITU-T V.24 / EIA/TIA RS-232E
Interface direction
DCE only
Maximum line length
10 metres (dependent on baud rate)
Async
parameters
Standard mode data bits
7 or 8 bits
Standard mode parity
Configurable for None, Even or Odd
Standard mode stop bits
1 or 2 bits
Interface baud rates
300, 600, 1200, 2400, 4800, 9600, 19200, 38400, 57600 and
115200 bit/s
Control signals
DCE to DTE
CTS, RTS, DSR, DTR
Diagnostics
Left Green LED
Off: no RS-232 device connected
On: RS-232 device connected
Right Orange LED
Off: no data present on the interface
Flashing: data present on the interface
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