Motorola 900 series - EIA-232 DCE Pinouts

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HD-26 Connectors

EIA-232

DCE

Pinouts

This section lists

the

specific

pinouts

used

the

EIA-232 DCE SIM (Motorola

Part

Number

Ol-W3876B0x).

Any

HD-26

not

listed

below

not

connected.

The first

two

columns

give the

TIL

signal

name

and

the

PWB sources

receives

that

signal.

The

two

columns

give

the

HD-26

number

the

signal is

driven

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-10. EIA-232 DCE

Pinouts

TTL

HD-26Pin

EIA-232 EIA-232

Name

Direction

Number

Name

Direction

TD Sourced

HD26-3 RD

Output

ETXC

Sourced HD26-15

TXC

Output

ETXC

Sourced

HD26-17

RXC

Output

RTS*

Sourced HD26-5 CTS

Output

DTR*

Sourced

HD26-8

Output

LL*

Sourced HD26-25 TM

Output

RL*

Sourced

HD26-22

Output

RD Received

HD26-2 TD

Input

CTS*

Received HD26-4

RTS

Input

DSR*

Received

(1)

HD26-6 DSR

Output

(1)

CD*

Received HD26-20 DTR

Input

TXC

Received HD26-24

ETXC

Input

RXC

Received HD26-24

ETXC

Input

Rl*

Received HD26-21

Input

Received HD26-18

Input

GND

HD26-7

(1)

Both the TTL

DSR*

output

and

the

HD-26 DSR signal are tied active.

S900RF/D4

B-11

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