3. Installation

3.8. Serial Ports: RJ45

The RX1512 supports serial port line modules with RJ45 connections. On power-up, all serial ports default to RS485 mode. Each port can be individually set to RS232, RS485, or RS422 mode via software.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Pin

RS232 Mode

RS485 Mode

RS422 Mode

 

1

 

 

RX-

 

 

 

 

 

 

2

 

Reserved

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

3

COM (Isolated GND)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

4

COM (Isolated GND)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5

RX

 

RX+

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

6

TX

TX/RX +

TX +

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

7

CTS

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8

RTS

TX/RX -

TX -

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 3.15. RJ45 Serial Pin Configuration

Shield

 

Chassis GND

 

 

 

 

 

 

 

 

 

Table 3.5. RJ45 RS232/RS485/RS422 Serial Pin

Assignment

Pin 2 is reserved for future IRIG-B output. Do not connect Pin 2 at this time; doing so may cause hardware damage. Pins 7 and 8 are connected internally. No internal termination is provided. In RS232 mode, these pins enter a high impedance state. A DTE that asserts RTS will see CTS asserted, but hardware flow control is not performed on the port.

3.9. DDS Ports: RJ45

The RX1512 supports DDS port line modules with RJ45 connections. The 56 kbps DDS port is compatible with Bellcore standards. Each DDS module features a single 56/64 kbps DDS line interface with a standard RJ45 receptacle.

RJ45 Pin

Description

1

R1: Transmit data to network (Ring 1)

 

 

2

T1: Transmit data to network (Tip 1)

 

 

3

NC

 

 

4

NC

 

 

5

NC

 

 

6

NC

 

 

7

T: Receive data from network (Tip)

 

 

8

R: Receive data from network (Ring)

Figure 3.16. RJ45 DDS Pin Configuration

Table 3.6. RJ45 DDS Pin Assignment

RuggedCom® RuggedBackbone™

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RX1512 Installation Guide Rev 105

Page 25
Image 25
RuggedCom RX1512 manual Serial Ports RJ45, DDS Ports RJ45, Pin RS232 Mode RS485 Mode RS422 Mode, RJ45 Pin Description