61245023L1-5B
Section 61245023L1-5B, Issue 2
5
2. INSTALLATION
Unpacking and Inspection
After unpacking the unit, inspect it for damage. If
damage is discovered, file a claim the carrier, then
contact ADTRAN. See
Warranty and Customer
Service
.
Configuring the T1 Nx64 HTU-R
The T1 Nx64 HTU-R contains options used to
properly configure the unit. These configuration
options are accessible through the front panel LCD
and push buttons. The T1 Nx64 HTU-R
configuration options are shown in
Table 2.
Table 2. Configuration Options for a Remote (Slave) Unit
Configuration
Description
HTU-R Mode
Selects between Master and Slave mode for the T1 Nx64 HTU-R
Master (HTU-C) ........... The T1 Nx64 HTU-R is configured as the Local (Master) unit
Slave (HTU-R) ............. The T1 Nx64 HTU-R is configured as the Remote (Slave) unit
Clock
Selects the HDSL timing source
Network ........................ The T1 Nx64 HTU-R will derive HDSL timing from the network
Internal ......................... The T1 Nx64 HTU-R uses its internal oscillator to generate HDSL
timing
DTE .............................. The T1 Nx64 HTU-R derives HDSL timing from the DTE
DTE INT. TYPE
Selects the DTE interface connector being used
V.35 ............................... Select this option if the DTE is connected to the M/34 connector
V.11 ............................... Select this option is the DTE is connected to the DB11 connector
RATE 56/64
Selects the channel data rate of either 56 kbps or 64 kbps
56 .................................. Selects 56 kbps
64 .................................. Selects 64 kbps
CHANNELS
Selects between contiguous or alternating DS0s
CONT ........................... Contiguous DS0s
ALT ............................... Alternating DS0s
DTE TX CLK
Selects the timing source for the transmit data clock
INT_INV ...................... Inverted form of the internal DTE-TX-CLK setting
AUTO ........................... Measures the delay between the DTE data and its clock and
automatically selects between INTERNAL and INT_INV
INTERNAL .................. Allows the Nx64 HTU-R to provide transmit data clock
EXTERNAL ................. Derives DTE transmit clock from the DTE device
START CHAN
Selects the starting channel (01 thru 24) for Nx56/64 kbps operation
# OF CHAN.
Selects the number N (01 thru 24) for Nx56/64 kbps operation
DATA
Controls the state of the TD and RD leads
NORMAL ..................... Forces normal data format
INVERT ....................... Forces inverted data format
CTS
Controls the state of the CTS lead from the HTU-R
NORMAL ..................... Causes CTS to follow RTS
FORCE ON .................. Causes CTS to be forced on and RTS ignored
DCD
Controls the state of the DCD lead from the HTU-R
NORMAL ..................... DCD is active when loops are in sync and/or when a T1 carrier is present
FORCE ON .................. Causes DCD to be forced on always
DSR
Controls the state of the DSR lead from the HTU-R
NORMAL ..................... Causes DSR to follow DTR
FORCE ON .................. Causes DSR to be forced on and DTR ignored
