CTC Union IPM-4SE, User Manual

Chapter 3  Configuration and Operation 

Chapter 3. Configuration and Operation 

3.1 Description 

IPM-4SE consists of the front panel and the rear panel. The views and description of front and rear panels 
are shown in Figure 3.1 and 3.2. 
 
The IPM-4SE units are shipped in pre-configured pairs. One is labeled 

CO

 (central office) and the other 

labeled 

CPE

 (customer premises equipment). Be sure to carefully check the model's sticker. Simply place 

the CO unit towards the E1 clock source (SDH multiplexer, BSC, carrier, etc.) and place the CPE unit 
connecting to the E1 recovery equipment (DSU/CSU, BTS, customer, etc.). 
 

3.2 Front Panel Introduction 

There are 6 items that need to be mentioned on the front panel of IPM-4SE. 

3.2.1 System Indicators 

PWR (Power Exist LED) Make sure power is available and switch is turned on 
ALM (for any of E1 Links or WAN port Status)  
 

3.2.2 Reset Button 

Provides the facility of rebooting the system without powering off. 
 

3.2.3 LAN & MNT Ethernet Connectors and Indicators 

The Lan and MNT Ethernet interfaces use an RJ-45 connector with LED indicators 
There are green and yellow LED indicators: 

•

Green Link (Link Up/Down Status) 

•

Yellow Act (TX/RX Active Status) 

3.2.4 Alarm LED Display 

E1/T1 Interface 

•

Green ACT (E1 Port Traffic) 

•

Yellow ALM (E1 Port Link Status) 

The "RED" chassis LED indicates one of the following alarms occurred: 
E1/T1 LOS, AIS, L-bit or no received traffic from WAN port 
 

3.2.5 RS232 Connector 

An RS232 interface with baud-rate 115200bps via DB9 (female)-to-DB9 (male) cable is provided for 
diagnostics. The user commands (CLI command) are listed in Table 3.1. 
 

3.2.6 MNT Port (10/100M Ethernet Port for Telnet, or SNMP-based Management)  

Provides a user management interface  -  Telnet or SNMP, via MNT port for managing the local & remote 
NEs. 
 
 
 
 
 
 
 

Figure 3.1 IPM-4SE 4-Port E1 Front Panel View 

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