Table of Contents
Advertisement
daughter card and inserts directly in the BCU slot on
the TA 750 shelf. An 8-position DIP switch is
mounted on the daughter card and is used for T1
provisioning and clocking.
This device complies with Part 15 of the FCC rules.
Operation is subject to the following two conditions:
(1) This device may not cause harmful interference,
and (2) this device must accept any interference
received, including interference that may cause
undesired operation.
Changes or modifications not expressly approved by
ADTRAN could void the user's authority to operate
this equipment.
Functional Description
The TA 750 BCU L2 provisions, operates, monitors,
and tests the DSX-1 interface and all TA 750 access
modules including Quad FXS, Quad FXO, OCU DP,
DS0 DP, and Nx56/64 DSU DP. The BCU programs
T1 bandwidth use between the various access modules
and data ports.
2. INSTALLATION
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
After unpacking the unit, inspect it for damage. If
damage is noted, file a claim with the carrier, then
notify ADTRAN Customer Service, see section 7.
The TA 750 BCU plugs directly into the BCU slot in
the common module area of the TA 750 chassis. To
insert, hold the unit by the faceplate while supporting
the bottom side. Align the card edges to the guide
grooves for the designated slot. Insert into the chassis
until the edge connector seats firmly into the
backplane. Lock the unit in place by pushing in on
the locking lever.
Compliance Codes
This product is intended to be installed in products
providing Type "B" or "E" enclosure, and in a
Restricted Access Location. Refer to Table 1.
Table 1. Compliance Codes
Code
Input
PC
TC
IC
2
Output
C
C
–
X
A
–
Section 61175012L2-5, Issue 4
3. OPTIONS
The TA 750 BCU L2 can be provisioned from either
an 8-position Dual In-line Package (DIP) switch (S1)
mounted on the PCB, or through screen menus
accessed via the faceplate craft interface port. Basic
T1 provisioning, clock source, and CSU loopback
options are found on the DIP switch. Refer to Table 2
for DIP switch S1 provisioning information.
Additional and more in-depth provisioning options for
the BCU as well as access modules are available
through the craft ADMIN interface. The craft admin
port must be used to provision the Fractional T1
(DSX-1) interface.
DIP switch S1 must be provisioned while the BCU is
withdrawn from the chassis. Once installed, any
software provisioning made will override the DIP
switch settings. If the unit is withdrawn and reinserted
(power cycled) the software options remain in effect.
If a DIP switch setting is changed while withdrawn
then the new DIP switch setting takes effect. If none
of the DIP switch settings were changed then the unit
will be provisioned for the last software settings.
Electronic Provisioning
The ADMIN interface on the TA 750 BCU is used to
change factory selected options and to obtain access
module status through menu screens. To access the
menu screens, connect a VT 100 terminal or computer
running a terminal emulation program to the craft
interface port using a standard male-to-female RS-232
DB-9 cable. Craft port settings are as follows:
•
9600 Baud
•
No parity
•
8 Data bits
•
1 Stop bit
WINDOWS HYPERTERMINAL
Windows Hyperterminal can be used as a VT 100
terminal emulation program. Open Hyperterminal by
selecting PROGRAMS/ ACCESSORIES/
HYPERTERMINAL. Refer to the Help section of
Hyperterminal for additional questions.
NOTE
To ensure proper display background in
Windows Hyperterminal, select VT 100
terminal emulation under SETTINGS.
61175012L2-5D
Advertisement
Table of Contents
