Option description | Configuration | 232 | 422 | 485hdx | 485fdx |
option |
| | | | | |
Baud rate multiplier | -x | optional | optional | optional | optional |
| | (1,2,4,8, | (1,2,4,8, | (1,2,4,8, | (1,2,4,8, |
| | 16,32) | 16,32) | 16,32) | 16,32) |
Slew rate limiting | -s | optional | optional | optional | optional |
| | fast/slow | fast/slow | fast/slow | fast/slow |
| | | | | |
Line termination | -t | N/A | optional | optional | optional |
| | | (term/ | (term/ | (term/ |
| | | unterm) | unterm) | unterm) |
EIA-485 HDX local | -e | N/A | N/A | optional | N/A |
echo | | | | echoon/ | |
| | | | |
| | | | echoff | |
EIA-485 TX Driver | -a | N/A | N/A | optional | optional |
Control | | | | (auto/rts) | (auto/rts) |
| | | |
Auto EIA-485 bit delay | -b | N/A | N/A | optional | optional |
| | | | ( 0 -15) | ( 0 -15) |
| | | | | |
(-f)Specifies the name or range of names which the action should be taken on.
For example:
/dev/ttyz1 -specifies port 1 /dev/ttyz1,/dev/ttyz64 - specifies ports 1 through 64
(-l)Lists the protocol configuration for each serial port configured on the UltraPort SI. /dev/ttyz1 232 slow term 1
/dev/ttyz1 485fdx fast term auto 5 1
The first example shows a device named ttyz1 configured for protocol mode EIA-232, slew rate limiting is set to slow, termination is on, and the baud rate multiplier is 1
The second example shows device named ttyz1 configured for protocol mode EIA-485fdx, slew rate limiting is set to fast, termination is on, EIA-485 HDX TX Driver Control is set to auto with bit delay of 5 bits and the baud rate multiplier is 1
(- m ) Interface mode: The valid software switchable protocol types are EIA-232, EIA-422, EIA-485 Full Duplex and EIA-485 Half Duplex. Each port on the UltraPort SI are independent of each other and therefore you may select different protocols per serial port.
(-x) Baud Rate Multiplier: The baud rate multiplier allows the user to multiply the configured baud rate by 1, 2, 4, 8,16 or 32, hence achieving greater speeds on the UltraPort SI serial interfaces. This is applicable for each protocol type selected. Baud rates for EIA-232 are up to 921.6 Kbps per serial port. Baud rates for EIA-422/EIA-485 are up to 3.686 Mbps per serial port.
UltraPort Serial Adaptors User Guide | Chapter 2 Installing drivers and host cards |
Installing under SCO OpenServer and OpenServer6 | Page 59 |
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