Serial Port Characteristics
At the IPC-1600 RJ-45 type modular jack connectors, each serial port is configured as Data Terminal Equipment (DTE). To connect an I/O device (terminal or MODEM) to a serial port requires a 10-conductor or 8-conductor modular cable and the appropriate 10-pin or 8-pin modular to 25-pin connector adapter. Modular cables and adapters are ordered separately for the IPC-1600.
Each of the sixteen serial ports have the following characteristics.
■Output current is limited with 10 milliamperes being typical.
■Power-off output impedance is 300 ohms (minimum).
■Input resistance is 3K ohms to 7K ohms.
■Input voltage range is +30V to -30V.
■Input has built-in hysteresis (double thresholds).
SERIAL I/O DEVICE INTERFACE B-1
