Figure 5-114
Monitoring signal cable for the EMU
(1) RJ-45 connector
(2) DB9 male connector
Pin Assignment
describes the pin assignment for the wires of the monitoring signal cable for the
EMU.
Table 5-77
Pin assignment for the wires of the monitoring signal cable for the EMU
Pin on the
RJ-45
Connector
Pin on the DB9
Male Connector
Wire Color
Wire Type
Label
X1.1
X2.3
White
Twisted pair
TX+
X1.2
X2.7
Orange
TX-
X1.5
X2.6
White
Twisted pair
RX-
X1.4
X2.2
Blue
RX+
5.8.7 Monitoring Signal Cable for the GATM
This cable connects the BBU and GATM, enabling the BBU to transmit control signals to the
GATM and enabling the GATM to report alarms to the BBU.
Structure
shows the monitoring signal cable for the GATM.
5 BTS3900 Cables
BTS3900
Hardware Description
5-86
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Issue 04 (2011-02-15)