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BTS3900
Hardware Description
Figure 4-27 Panel of the UTRP supporting four electrical ports
Functions
The UTRP has the following functions:
l
l
l
l
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LEDs
Table 4-34
Table 4-34 LEDs on the panel of the UTRP
Label
RUN
Issue 04 (2011-02-15)
The UTRP2 provides two 100M/1000M Ethernet optical ports, performs functions of the
MAC layer, receives and transmits data on Ethernet links, and analyzes the MAC address.
The UTRP3 provides eight E1s/T1s and performs inverse multiplexing and demultiplexing
on a single ATM cell flow on the eight E1/T1 links.
The UTRP4 provides eight E1s/T1s, frames and deframes HDLC frames, and allocates and
controls the 256 HDLC timeslot channels.
The UTRP4 provides an E1/T1 port for four TDM transmission links in GSM mode and
provides a port for four transmission links in another mode for co-transmission in a dual-
mode base station.
The UTRP6 supports one unchannelized STM-1/OC-3 port.
The UTRP9 provides four 10M/100M/1000M Ethernet electrical ports and performs the
functions of the MAC layer and physical layer.
The cold backup is supported.
describes the LEDs on the panel of the UTRP.
Color
Green
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Copyright © Huawei Technologies Co., Ltd.
4 BTS3900 Components
Status
ON
OFF
ON for 1s and OFF
for 1s
ON for 0.125s and
OFF for 0.125s
ON for 2s and OFF
for 2s
Description
The board has power
input, but the board is
faulty.
The board has no
power input, or the
board is faulty.
The board is running
properly.
The board is not
configured or is
loading software.
The board is in the
offline state or under
test.
4-33
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