7188XA/B/C & 7521/2/2A/3/4/7 Series Hardware User’ s Manual, Ver. 2.0 Sep/2002, 7Mh-001-20 -----
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The COM ports of the 7188XB/7188XC are given as follows:
COM port Hardware
COM1
80188’ s on-chip UART-0, 5-wire RS-232 & 2-wire
RS-485
COM2
80188’ s on-chip UART-1, 2-wire RS-485
The COM ports of the 7521 series are given as follows:
COM port Hardware
COM1
80188’ s on-chip UART-0, 5-wire RS-232 & 2-wire
RS-485
COM2
80188’ s on-chip UART-1, 2-wire RS-485
The COM ports of the 7522 series are given as follows:
COM port Hardware
COM1
80188’ s on-chip UART-0, 5-wire RS-232 & 2-wire
RS-485
COM2
80188’ s on-chip UART-1, 2-wire RS-485
COM3
16C550, I/O expansion bus, 5-wire RS-232
The COM ports of the 7523 series are given as follows:
COM port Hardware
COM1
80188’ s on-chip UART-0, 5-wire RS-232 & 2-wire
RS-485
COM2
80188’ s on-chip UART-1, 2-wire RS-485
COM3
16C550, I/O expansion bus, 5-wire RS-232
COM4
16C550, I/O expansion bus, 3-wire RS-232
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