Cables
EIA-232 DTE Pinouts
B-10
This table lists the specific
pinouts
used
in
the EIA-232 DTE SIM (Motorola
Part
Number
01-W3877BOx).
Any
HD-26 connector
pin
not
listed
below
is
not
connected. The first two columns give the TTL signal
name
and
if
the
PWB
sources or receives
that
signal. The next two columns give the HD-26
pin
number
the signal is
driven
to or received from,
and
its
name
according to the
EIA-232 specification. The last
column
gives the direction of the EIA-232
signal.
Table B-9. EIA-232 DTE
Pinouts
TIL
TTL
HD-26Pin
EIA-232
EIA-232
Name
Direction
Number
Name
Direction
TD Sourced
HD26-2
TD
Output
ETXC
Sourced HD26-24 ETXC
Output
RTS*
Sourced
HD26-4
RTS
Output
DTR*
Sourced HD26-20
DTR
Output
LL*
Sourced
HD26-18
LL
Output
RL*
Sourced
HD26-21
RL
Output
RD Received HD26-3
RD
Input
CTS*
Received HD26-5
CTS
Input
DSR*
Received
HD26-6 DSR
Input
CD*
Received HD26-8
CD
Input
TXC
Received HD26-15
TXC
Input
RXC
Received HD26-17
RXC
Input
RI*
Received HD26-22
RI
Input
TM*
Received HD26-25
TM
Input
GND
HD26-7
SG
Reference
Guide
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