PCMCIA 1 Port RS422/485
Additional 422/485 Operation
Chapter 4 Page 38
In this way, no data will ever be transmitted when the receiver is
unable to accept it, due to a full input buffer etc. And so no data will
be lost.
RS422 Serial Port Cables.
Use screened twisted pair Belden cable 9729 and 9829, L
type 2493 and 2919 or IBM Part No 4716748 cable to make the
RS422 connection. Unscreened Belden type 8795 may also be used
in less noisy environments.
The on board resistor networks terminate the receiving end of
the twisted pair cable in its characteristic impedance.
Figure 4-1. Serial Port 1 To Other PC Cable.
SERIAL PORT 1 Side
Other PC SERIAL PORT Side.
9 Pin Female D Connector
9 Pin Female D Connector
Note:
Receiver ends terminated in characteristic impedance
ONBOARD resistor networks.
USE BELDEN TYPE 9729 etc. see above.
RS485 Gating & Multiplex Jumpers as Factory Set.
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