User's Manual

Table Of Contents
MBSC-C RU
MBSC-C RU December 15, 2015
Page 15
Table 3 RF-Optic Transceiver Interface
#
Port
Device
Description
1 RF OUT QMA\SMA female coaxial connector RF output
2 RF IN QMA\SMA female coaxial connector RF input
3 OPTIC IN/OUT E2000/APC Fiber interface (HU & RN)
4 --- DB9 female Power supply & monitoring
Table 4 DB9 PINOUTS
#
PIN
Definition
Description
1 PIN1 NC
2 PIN2 GND
3 PIN3 VCC +12V DC
4 PIN4 TXD1/B1 Channel1: RS485-B1
5 PIN5 RXD1/A1 Channel1: RS485-A1
6 PIN6 RXD0/A0 Channel0: RS485-A0
7 PIN7 LD ALM Laser Device error
8 PIN8 TXD0/B0 Channel0: RS485-B0
9 PIN9 PD ALM Photo-detector error
Table 5 RF-Optic Transceiver Indicators
# Indicator Status Description
1 POWER
Green Normal
Off No power supply
2 PD ALARM
Off Photo-detector works
Red Photo-detector error
3 LD ALARM
Off Laser Device works
Red Laser Device error
Notes: If the fiber is not connected properly, both of the HU and RN’s PD ALARM indicator will alarm (red LED). Otherwise the
indicator is off.
3.3.1.2 Mounting
The fiber CM-BTS/ANT enclosure is hanging-mounted on the mounting bracket.
3.3.1.3 RF Connection
Optical Module: The RF signal connections with the optical fiber module are supported through 5 groups of
SMA female connectors. These five connector groups are used for coaxial cable inter-connection of the
simplex Tx and Rx RF signals to the single-band RU enclosures.
Antenna Combiner: The RF signal connections with the antenna combiner are supported through 5 N-type
female connectors. These five N-type connectors are used for coaxial cable connection to the Antenna ports
of the single-band RU enclosures. A single 7/16 DIN connector is used to interface the combined multi-band