ROC827 Instruction Manual

 

 

 

Table 5-3. Built-in LOI EIA-232 Signal Routing

 

Signal

LOI Function

RJ-45 Pins

Description

 

on ROC827

 

 

 

 

 

 

 

Data Terminal

 

Originated by the ROC827 Data Terminal Equipment (DTE) to instruct

 

DTR

3

the Data Communication Equipment (DCE) to setup a connection.

 

Ready

 

 

 

DTE is running and ready to communicate.

 

 

 

 

GND

Ground

4

(Common)

 

 

RX

Receive

5

TX

Transmit

6

RTS

Request to Send

8

Reference ground between a DTE and a DCE and has a value 0 Volts dc.

Data received by the DTE. Data sent by the DTE.

Originated by the DTE to initiate transmission by the DCE.

Figure 5-3. RJ-45 Pin Out

The LOI terminal requires the installation of a D-Sub 9 pin (F) to RJ-45 modular converter between the ROC827 and personal computer (PC). Refer to Table 5-4.

Table 5-4. RJ-45 to EIA-232 (RS-232) Null-modem Cable Signal Routing

EIA-232

ROC800-

RJ-45 Pins

(RS-232)

on ROC800-

Series

DTE

Series

 

4

1

1

2

6

DTR

3

5

GND

4

3

TX

5

2

RX

6

7

7

8

RTS

8

Table 5-5. Using Cable Warehouse 0378-2 D-Sub to Modular Converter 9-Pin to RJ-45 Black

 

Wire

RJ-45 Pins

Pin

on ROC800-

Color

 

Series

 

 

1

Blue

4

2

Orange

1

3

Black

6

Issued Mar-06

Communications

5-6

Page 98
Image 98
Emerson ROC827 Built-in LOI EIA-232 Signal Routing, RJ-45 to EIA-232 RS-232 Null-modem Cable Signal Routing, Orange