CTC Union IPM-4SE, Руководство пользователя, Страница: 12 / 26

Chapter 2 Installation
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2.7 Basic Configuration and Diagnosis
The IPM-4SE units are shipped in pre-configured pairs. One is labeled CO (central office) and the other
labeled CPE (customer premises equipment). 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.). After installing the device and powering on, if E1 transmission does not immediately
work, follow the diagnostics and basic troubleshooting.
2.7.1 Utilize tools for diagnosis
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Maintain and troubleshoot the status from LED indications, shown below.
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Connect basic VT100 terminal to console port using 115.2K, 8bit, no parity, 1 stop bit no flow control
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Telnet NE using port 8888 to show the alarm or status if association still works.
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Associate NE via IPM-4SE GUI (tbd) to diagnose if configuration is correct and what status occurs.
2.7.2 Basic Troubleshooting
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If a ping of the remote NE via LAN/MAN does not respond, then please check the LAN connections and
make sure Switch/LAN/MAN are working.
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If TDM or LAN provides unstable quality of service, please check the link performance or access port
(E1/LAN) and reset the NE.
2.8 LED Indicators
LED Name Light Status Descriptions
PWR Green Power is on
ALM Red Raised from any PDH link alarms
Table 2.1 Chassis LED Indications of IPM-4SE
LED Name Light Status Descriptions
ACT Green E1 traffic is active (Ports 1~4)
ALM Yellow Raised from E1 link alarms (Ports 1~4)
Table 2.2 E1 LED Indications of IPM-4SE
LED Name Light Status Descriptions
Ethernet LINK Green Ethernet link is up
Ethernet ACT Blinking Yellow TX or RX Ethernet traffic is active
Table 2.3 MNT, LAN and WAN (RJ-45) LED Indications of IPM-4SE