User Manual

ADCP-75-114 • Issue 2C • January 2002
Page 4
© 2002, ADC Telecommunications, Inc.
1.8 User Interface
The RIU user interface consists of the various connectors, switches, terminals, and LED that
are provided on the RIU front panel. The RIU user interface points are indicated in Figure 3
and described in Table 1.
NOTE: SHOWN WITHOUT
CABLE MANAGEMENT TRAY
(3) AC POWER CORD
CONNECTOR
(8) ALARM LED
INDICATOR
(9) ALARM
CONNECTOR
(1) ANTENNA
CONNECTOR
(5) FORWARD LEVEL
ADJUSTMENT
SWITCHES
(2) AC POWER
ON/OFF SWITCH
(6) FORWARD
RF OUTPUT
CONNECTOR
(7) REVERSE
RF INPUT
CONNECTOR
(4) REVERSE LEVEL
ADJUSTMENT
SWITCHES
16651-A
Figure 3. Remote Interface Unit User Interface
Table 1. Remote Interface Unit User Interface
REF
No.
USER INTERFACE
DESIGNATION DEVICE FUNCTIONAL DESCRIPTION
1 ANTENNA N-type female RF
coaxial connector
Used for connecting the donor antenna
coaxial cable.
2 I/O I/O rocker switch/
circuit breaker
Provides AC power On/Off control and
AC power over current protection.
3 POWER 3-wire AC power
cord connector
Used for connecting the AC power cord.
4 REV LEVEL ADJ
MSB LSB
Rotary switch Used to adjust the reverse path RF signal
level by adding or removing attenuation.
5 FWD LEVEL ADJ
MSB LSB
Rotary switch Used to adjust the forward path RF signal
level by adding or removing attenuation.
6 FORWARD OUT N-type female RF
coaxial connector
Used for connecting the RIU to DHU
forward path coaxial cable.
7 REVERSE IN N-type female RF
coaxial connector
Used for connecting the DHU to RIU
reverse path coaxial cable.
8 ALARMS Multi-colored LED
(Red/Green/Yellow)
Indicates if the RIU is normal or faulty. (see
Section 3 for a detailed description)
9 MINOR MAJOR Screw-type terminal
connector (14–26
AWG)
Used for connecting the RIU to an external
alarm system. Includes normally open (NO),
normally closed (NC), and common (COM)
wiring connections.