SeaLevel ACB II 3061, Руководство пользователя

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Card Setup
Sealevel Systems ACB-II Page 5
Miscellaneous I/O Pin Selection (Header E4)
Jumper block E4 allows the user to configure the ACB-II clock and
miscellaneous I/O pins. Please refer to the following illustration for aid in
configuring this header.
R
C
R
D
T
C
D
T
T
D
Figure 5 - Header E4 (Shown in Factory Default)
Input Pins
Choose only one of the following:
(pin 6 RS-232, pins 8 & 9 RS-422)
RC Selects RXC pin as an input to the DB-25 connector
RD Selects RDB pin as an input to the SCC
Output Pins
Choose only one of the following:
(pin 20 RS-232, pins 20 & 21 RS-422)
TC Selects the TXC pin as an output to the DB-25 connector
DT Selects the DTR pin as an output to the DB-25 connector
TD Selects the TDB pin as an output to the DB-25 connector
Note: While the ACB-II is designed as a single port implementation of the
SCC, the ‘ B ’ channel R eceived D ata (RDB) and T ransmit D ata
(TDB) are brought out to the DB-25 through Header E4; allowing
the use of the second port on the SCC in a user definable two port
application.