ADTRAN NTU-45E Quick Reference Guide
Service Difficulties & Faults
If you encounter any difficulties or faults, please contact:
Global Customer Service – 1800 028 555
Or your Account Executive.
S/I Number Item Description
511/712 NTU-45E, HSSI B/U 48VDC+240VAC Power Pack
511/713 NTU-45E, HSSI B/U 48VDC
511/694 Power Pack,240VAC – 48VDC for NTU-45
511/722 Power Pack, 48VDC for NTU-45/45E -AULT
511/695 NTU-45 Module,V35 Service Interface
511/696 NTU-45 Module,HSSI Service Interface
511/707 Tray, Cable for NTU-45
NTU-45E
Quick Reference
Guide
61200667L1-13A
NTU-45E Front Panel
1
23456 7
CONTROL
REMOTE
ACTIVE
IN SERVICE
IN TEST
ALARM
LOS
IN SERVICE
IN TEST
ALARM
LOS
NETWORK
INTERFACE
NETWORK
INTERFACE
NTU-45E Rear Panel
8
24-48 0.5A
+
-
USE COPPER CONDUCTORS ONLY
DTE PORT 4
9
Interfaces
LOOP
SELECT
LOOP
LOCAL
10
DTE PORT 3
LOOP
REMOTE
LOOP
SELECT
LOOP
LOCAL
STATUS
IN TEST
TD
RD
DTE PORT 1
LOOP
REMOTE
DTE PORT 2
STATUS
IN TEST
TD
RD
DTE PORT 2
STATUS
IN TEST
TD
RD
STATUS
IN TEST
TD
RD
DTE PORT 3
DTE PORT 1
12
ALARM
NC
COM
DTE PORT 1
11 13 14
Front Panel LEDs
2. Remote Active LED (Telstra use only)
STATUS
IN TEST
TD
RD
E
DTE PORT 4
ST
I
15
AUX
LAN
DS3 INTERFACE
RX IN TX OUT
NO
Remote Active
Indicates when the NTU-45E is being managed locally, or via a Telnet session
(Yellow)
3. Network Interface LEDs (Telstra Use Only)
IN SERVICE (Green)
TEST (Yellow)
ALARM (Yellow or
Red)
LOS (Red)
Indicates when the NTU-45E is powered on and functioning correctly.
Indicates when a Loop or Bit Error Rate test is active on the Network Interface.
YELLOW indicates that there is a problem with the Remote NTU-45E.
RED indicates that the NTU-45E cannot align with the incoming signal.
Indicates that the NTU-45E cannot detect any signal on the Network Interface.
7. DTE Port LEDs (Customer Interfaces)
Status (Green
Yellow or Red)
In Test (Yellow)
TD (Green)
RD (Green)
OFF indicates that there is no card installed
Flashing GREEN indicates that the interface is not configured for service
GREEN indicates that the interface is ready to carry data.
YELLOW indicates that the interface is ready, but cannot detect the
customer's equipment (DTE)
RED indicates that there is a problem with the interface.
Indicates when a Loop or Bit Error Rate test is active on the Interface.
During the process of activating a loop from the front panel push buttons,
this LED will Flash, indicating that it is selected but no Loop test exists.
Indicates that the interface is transmitting data to the Newtork
Indicates that the interface is receiving data from the Network
Local Control Port
1.
(Telstra use only)
Power Cord Strain Relief
8.
9.
10.
DTE Ports 2, 3 and 4
11.
DTE Port 1
Alarm Port
12.
TDC Power erminal Block
(Telstra use only)
Management Port
13.
(Telstra use only)
Network Interface Port
14.
(Telstra use only)
Auxillary Control Port
15.
(Not Used)
VT100, EIA-232 Interface for local management
48V DC power interface (Earth, Positive, Negative)
Slots to accomodate optional HSSI or V.35 DTE modules
In-built High Speed Serial Interface (HSSI)
Alarm Relay Contacts (Normally Closed, Common, Normally Open)
10BaseT LAN interface for remote management via MACS
75 ohm Coaxial Interface with separate Transmit and Receive BNC
Connectors
Not Used
Front Panel Push Buttons
4. Loop Select
The Loop Select button is used to select the port that is to be looped. It will cycle through
the four ports, causing the respective ports Test LED to flash.
When a loop is in place, pressing this button will turn the loop off.
5. Loop Local
When a port has been selected using the Loop Select button, pressing the Loop Local
button will initiate a loop on the selected port of the local NTU-45E.
When a loop is in place, pressing this button will turn the loop off.
6. Loop Remote
When a port has been selected using the Loop Select button, pressing the Loop Remote button
will initiate a loop on the selected port of the remote NTU-45E.
When a loop is in place, pressing this button will turn the loop off.
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