Technologic Systems TS-SER4, Руководство пользователя

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6
(up to 1 Megabit/sec) or non-standard baud
rates easily. The PC/104 OSC signal is
always used as the clock source except when
a crystal oscillator is installed. When a crystal
oscillator is installed, it is always used to
derive the baud clock.
4. COM Port Selection
The four COM ports can be
configured as COM1 thru
COM24. Jumpers (labeled
COM1, COM2, COM4 and JP3)
are used to select the base COM
port using a binary weighting.
COMA is always the base COM
port selected. For example, if the
four COM ports are to be
configured as COM5 thru COM8
then jumpers “COM1” and
“COM4” should be installed (1 + 4
= 5). In this case COMA would
be COM5 and COMB, COMC,
and COMD would be COM ports
COM6, COM7, and COM8
respectively.
Table 3 documents jumper
settings and the base COM port
selected.
PLEASE NOTE: Not all serial
adapter cables are alike! We are
aware of at least two 'standard'
pinouts for these cables. If you did
not purchase your serial adapter
cables from us, this may be an issue
if the serial ports are not working.
5 4 3 2 1
10 9 8 7 6
Figure 1 - Serial Port Header Pin Location
Pin 1 is labeled with a dot in the legend
Pin RS-232 RS-422 RS-485
1 TX+ RX/TX+
2 RXD
3 TXD
4 RX+
5 GND GND GND
6 TX- RX/TX-
7 RTS
8 CTS
9 RX-
10
Table 2
Pinout for COM_C and COM_D Headers
Jumper
COM1
Jumper
COM2
Jumper
COM4
Jumper
JP3
Control
Reg. Base
Address
Base COM
Port
Address
Yes No No No 230h COM1
No Yes No No 230h COM2
Yes Yes No No 230h COM3
No No Yes No 230h COM4
Yes No Yes No 234h COM5
No Yes Yes No 234h COM6
Yes Yes Yes No 234h COM7
No No No No 238h COM9
Yes No No Yes 240h COM13
No Yes No Yes 240h COM14
Yes Yes No Yes 240h COM15
No No Yes Yes 240h COM16
Yes No Yes Yes 244h COM17
No Yes Yes Yes 244h COM18
Yes Yes Yes Yes 244h COM19
No No No Yes 248h COM21
Table 3 – Base COM port Selection