User's Manual

Table Of Contents
mBSC-CM RUM
mBSC-CM December 15, 2015
Page 20
#
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 8 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.
3.3.3.2 RF Connection
Optical Module: The RF signal connections with the optical fiber module are supported through 5 groups of
QMA 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 RUM enclosures.
3.3.3.3 Optical Port
The RTM enclosure uses anE2000/APC type optical transceiver for inter-connecting the optical fiber. The
transceiver supports single-mode (yellow) fiber.
3.3.3.4 Powering
The RTM enclosure is equipped with connector board in the bottom of chassis that provides a connection
point for the DC power cable from RPM.
3.3.3.5 User Interface
The RTM enclosure interface consists of the various connectors, terminals and LED indicators that are
provided on the front panel. The RTM enclosure user interface is described in Table 6and indicated in Figure
12.