User's Manual

ADCP-75-158 • Issue 1 • July 2003 • Section 2: Description
Page 2-7
© 2003, ADC Telecommunications, Inc.
3 REMOTE UNIT OUTDOOR CABINET
The RU cabinet, shown in Figure 2-3, is a NEMA-3R enclosure (with removable dust filter) that
provides the following basic functions:
• Houses the various electronic modules (STM and LPA) and accessories (WDM or
CWDM) and protects them from the weather.
• Provides electrical interface connections for the STM and LPA modules.
• Provides ventilation openings to allow for entry of cool air and the escape of heated air.
• Provides a point for connecting the antenna cable and ground cable.
• Provides entry points for the fiber optic cable and AC power cable.
• Provides lightning protection
• Provides limited storage for fiber optic pigtails and patch cords.
• Provides electrical connections for the CWDM
7 REMOTE UNIT Multi-colored LED
(green/yellow/red)
Indicates if no alarms (green), a minor alarm
(yellow), or a major alarm (red) is reported by the
RU. See Note.
8 DRIVE Multi-colored LED
(green/yellow/red)
Indicates if the level of the RF input signal to the
HU is normal (green), low (yellow), or high
(red). See Note.
9 PORT 1/PORT 2 Multi-colored LED
(green/red)
Indicates if the reverse/forward path optical sig-
nals from the STM/HU are normal (green), if no
optical signals are detected (red), or if excessive
errors are detected (red). See Note.
10 SERVICE DB-9 connector
(female)
Connection point for the RS-232 service inter-
face cable.
11 NET IN RJ-45 jack (female) Connection point for CAN interface input cable.
12 NET OUT RJ-45 jack (female) Connection point for CAN interface output cable.
13 ALARM OUTPUT Screw-type terminal
connector (14–26
AWG)
Connection point for an external alarm system.
Includes normally open (NO), normally closed
(NC), and common (COM) wiring connections.
14 REVERSE 1
RF OUT
N-type female RF
coaxial connector
Output connection point for the primary reverse
path RF coaxial cable.
15 FORWARD
RF IN
N-type female RF
coaxial connector
Input connection point for the forward path RF
coaxial cable.
POWER 24–48 VDC
(Rear side - not shown)
Screw-type terminal
strip
Connection point for the DC power wiring.
Note: A more detailed description of LED operation is provided in Section 5.
Table 2-1. Host Unit User Interface, continued
REF
NO
USER INTERFACE
DESIGNATION
DEVICE
FUNCTIONAL
DESCRIPTION