ADTRAN HTU-C Quick Start Manual

HDSL Front Panel LEDs
HTU-C NB/WB
Label
LOOP
for Litespan
P/N: 1247002L1
CLEI: SLL7AAAA_ _
FAIL
HDSL
LP1 /LP2
RS-232 DB-9 CONNECTOR
Used to access performance monitoring data, perform loopbacks, and provision units
via VT 100 emulation applications, such as HyperTerminal–Private Edition. There
are two terminal emulation modes: Manual Update and Real-Time Update.
toggles between modes.
Manual Update Mode
Press the spacebar three times to manually update the screen. Print screen and log
files commands are available in this mode.
Real-Time Mode
The default mode. Print screen and log file commands not available. Cursor
placement and screen highlighting are enabled. Provision the terminal port for
VT100 as follows:
♦
Data Rate of 1.2 kbps to 19.2 kbps
♦
Asynchronous Data Format:
♦
Eight data bits
♦
No parity (none)
♦
One stop bit
NOTE: When using a PC with terminal emulation software, be sure to disable any
power saving programs.
C A U T I O N !
INSTALLATION
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
After unpacking the unit, inspect it for damage. If damage is noted, file a claim with
HANDLING PRECAUTIONS REQUIRED.
the carrier and then contact ADTRAN. For more information, refer to the Warranty.
©2007 ADTRAN, Inc.
All Rights Reserved.
HTU-C using Narrowband / Wideband for Litespan
Status Description
Off Unit is not in armed or loopback state.
Green A loopback is active on this unit.
2 Green Flashing Unit is in an armed state but not in loopback.
Off Unit is initialized and working properly.
Red Initializing or unable to operate.
Yellow Both loops are synchronized, but there is a yellow or red
alarm at the DS1 interface.
Red One or both loops are out of synchronization.
Off No synchronization between HTU-C and HTU-R on
loop 1/ loop 2.
Green Good signal quality on loop 1/ loop 2.
Yellow Marginal signal quality on loop 1/ loop 2.
Red Severely impaired signal quality on loop 1/ loop 2.
Flashing Error detected on either end of loop 1/ loop 2.
For more information, refer to the Installation and Maintenance Practice (P/N 61247002L1-5) available online at www.adtran.com.
HDSL
HDSL DEPLOYMENT GUIDELINES
♦
Cable Pairs must be non-loaded
♦
Total Bridged Tap < 2.5 kft
♦
No single Bridged Tap > 2 kft
♦ 196 kHz insertion loss ≤ 35 dB
♦ Pulse attenuation (loss on HDSL current system status screen) ≤ 30 dB
♦ Maximum loop resistance is 800 Ω
♦ Impulse noise ≤ 50 dBrn as measured using a 50 kb filter
♦ Wideband noise ≤ 31 dBrn as measured using a 50 kb filter
CAUTION: If the L1 is used in applications where narrowband and wideband copper
service wire pairs are connected simultaneously, only one service pair can
have terminating equipment connected to the HTU-C. Also, copper
service wire pairs not in use are considered bridged tap to the HDSL
loops in service and should be considered in the deployment guidelines. If
the bridged tap presented by the unused loop violates the CSA guidelines,
the unused pair should be disconnected.
PROVISIONING OPTIONS
Provisioning Option
Line Code
C +T
TRL
Framing
Loopback Timeout
DS1 Transmit level
Span Power
DS1 Latching Loopback
Customer Loss Response
NIU Loopback
(2)
New England Loopback
PRM Setting
(4)
1. When set for FT1, the CLOS setting is ignored. System will send an FT1 idle signal from
the HTU-C NB/WB for Litespan to the network consisting of a repeating 7E byte payload.
2. This option is not available if the HTU-R P/N 1247026L7 is used in the circuit.
3. This option is only available if the HTU-R P/N 1247026L4 is used in the circuit.
4. This option is not available if the HTU-R P/N 1247026L6 is used in the circuit.
COMPLIANCE
Refer to the HDSL HTU-C using Narrowband / Wideband for Litespan Compliance
Notice (P/N 61247002L1-17) for detailed compliance information.
®
Option Setting
B8ZS; AMI
AUTO; ESF; SF; UNF; FFFC
None; 60 minutes; 120 minutes
0dB; –15 dB
Enabled; Disabled
T1; FT1
(1)
AIS; LPBK; CDI
Enabled; Disabled
Enabled; Disabled
(3)
None; SPRM; NPRM
61247002L1-22A
0708
Default Settings
B8ZS
AUTO
120 minutes
0 dB
Enabled
T1
AIS
Enabled
Disabled
None