Specifications
Appendix B IR-IP Interface Module  ASMi-52 Installation and Operation Manual 
B-4 Physical Description   
B.3 Physical Description 
Figure B-2 shows the rear panels of ASMi-52 with the IR-IP interface module. 
CONTROL
ALARM
LINE
B
LINE
A
1425
ACTLINK
A
CT
LINK
ERR
SETUP
1234
IR-IP
E1/T1 SHDSL
TX RX
1425
Figure B-2. IR-IP Ethernet Router 
Table B-1 provides the pinout of the 10BaseT RJ-45 connector. 
Table B-1. RJ-45 Pinout 
Pin Name  Function 
1  TD (+)  Transmit data positive 
2  TD (-)  Transmit data negative 
3  RD (+)  Receive data positive 
6  RD (-)  Receive data negative 
IR-IP DIP Switch 
IR-IP interface module contains a four-section DIP switch, used to configure the 
basic operating parameters of the IP router. The switch is located on the ASMi-52 
rear panel as shown in Figure B-2. Table B-2 lists the DIP switch functions. 
Table B-2. IR-IP DIP Switch Functions 
No Function  Values  Default 
Setting 
1  Enables IR-IP to learn its IP  ON – IP address learning is enabled 
OFF – IP address learning is disabled 
OFF 
  Note: For details, see Assigning the Router LAN Interface Address on page B-8. 
2  Selects the WAN protocol  ON – PPP protocol 
OFF – Frame Relay protocol 
OFF 
3  Selects the LAN mode  ON – Full duplex operation 
OFF – Half duplex operation 
OFF 
4  Controls the remote WAN test loopback, 
which returns packets received from the WAN 
back toward the WAN 
ON – The test loopback is activated 
OFF – The test loopback is disabled 
OFF 
The switch can perform additional control functions, which are described below in 
this appendix. 
Note 










