ii
E1/T1 cable overview ·········································································································································· 25
Connecting an E1/T1 cable ································································································································ 26
Connecting a CE3/CT3 cable ····································································································································· 28
CE3/CT3 cable overview ···································································································································· 28
Connecting a CE3/CT3 cable ····························································································································· 28
Connecting a serial port cable ····································································································································· 29
Overview ································································································································································ 29
Connecting a serial port cable ···························································································································· 31
Logging in to the router and configuring basic settings ·························································································· 33
Login methods ································································································································································· 33
Logging in through the console port ···························································································································· 33
Preparation ····························································································································································· 33
Setting up a configuration environment ·············································································································· 33
Setting terminal parameters ·································································································································· 34
Verification before power-on ······························································································································· 37
Powering on the router ········································································································································· 37
Logging in to the router through Telnet/SSH ·············································································································· 38
Logging in to the router through the AUX port ············································································································ 38
Displaying the initial configuration ······························································································································ 39
Configuring basic settings ············································································································································· 39
Replacement procedures ··········································································································································· 41
Safety recommendations ··············································································································································· 41
Replacing a power module ··········································································································································· 41
Replacing a FIP module ················································································································································· 42
Replacing a HIM ···························································································································································· 42
Replacing a MIM ··························································································································································· 43
Replacing a CF card ······················································································································································ 44
Replacing a transceiver module ··································································································································· 45
Replacing a fan tray ······················································································································································ 46
Replacing a memory module ········································································································································ 47
Memory module structure ····································································································································· 47
When to replace a memory module ··················································································································· 47
Replacing a memory module ······························································································································· 48
Hardware management and maintenance ·············································································································· 50
Displaying hardware information of the router ··········································································································· 50
Displaying the software and hardware version information of the router······················································· 50
Displaying the operational statistics of the router ······························································································ 51
Displaying the detailed information about a module ························································································ 51
Displaying the electrical label information of a module ··················································································· 52
Displaying the CPU usage of a module ·············································································································· 53
Displaying the memory usage of a module ········································································································ 53
Displaying the CF card information ···················································································································· 54
Displaying the operational status of the built-in fan ··························································································· 54
Displaying the operational status of power modules························································································· 55
Displaying the alarming thresholds of a module ········································································································ 55
Configuring a combo interface ···································································································································· 55
Combo interface overview ··································································································································· 55
Configuration prerequisites ·································································································································· 55
Configuring a combo interface ···························································································································· 57
Displaying transceiver module information and alarming information ···································································· 57
Introduction to transceiver modules ····················································································································· 57
Displaying transceiver module information ········································································································ 57
Displaying the alarming information or fault detection parameters for a transceiver module ······················ 58
