Installation Instructions

1X UBS Macro B T S FRU DMI (Digital Module Internal) Assembly
DMI I/O Panel Connectors/Ports & LEDs
DMI I/O Panel
Figure 1 -11 DMI Module Front P anel Detail on page 1 - 41 shows I/O connectors on the front
panel of the UBS Macro BTS DMI. The top -to -bottom positioning of the DMI shown in the figure
is the same as when it is installed in the rack. This figure shows connector/port locations,
connector types and brief cabling details.
DMI Connectors/Ports
The following text describes each connector/port on the DMI front panel.
• +27VDC - DMI DC input power connections. Connects to corresponding DMI DC power
connector on the PDU of the UBS Macro BTS frame. The PDU DMI DC power connector
supplies protected +27 V via a 20 A circuit breaker .
• IDI/S SI 1 and S SI 2 - Serial backhaul traffic and control data connectors provide serial
data links between the DMI and the corresponding S SIs. The S SI 2 port is currently not
used.
The R20 UBS Macro BTS does not support frame configurations with an IDI
(Interworking DMI Interconnect) application.
• XMI 1/BSI and XMI 2 - High -speed Serial data Link (HSL) port connectors that each
provide a 1.2288 Gbps high -speed serial data links between the DMI and the respective
XMI. The high -speed serial data links support the transfer of baseband I & Q data as well
as control data between the DMI and XMI. These connectors are cabled to the appropriate
HSL 1 or HSL 2 high -speed serial data link connector on the XMI front I/O panel.
The R20 UBS Macro BTS does not support frame configurations with a BSI
(Baseband Switch Interface) application.
The MMI and LMT ports are intended to be used primarily for testing or debugging
purposes b y Motorola. These ports ma y be used in the eld for maintenance purposes
b y customers. Carefully follow written procedures when using these ports in the eld.
F ailure to do so could result in an inoper able FRU .
68P09283A64 -3 8 -7
FOA SEP 2007