Figure 3. Mid-Mount Bracket Orientation; Figure 4. Power And Ground Connectors - ADTRAN Total Access 1500 Chassis 1180001L1 Installation And Maintenance Practice

• Mid-mount: To mid-mount a shelf in the rack, use a
#2 phillips-head screwdriver and attach the mount-
ing brackets (see Figure
containing the slotted rack-mounting holes facing
the rear of the Total Access 1500 shelf. The mount-
ing brackets should be attached using the set of
mounting bracket holes closest to the front of the
Total Access 1500 shelf.
2 1
2 2
2 3
2 4

Figure 3. Mid-Mount Bracket Orientation

Installing the Chassis
After attaching the mounting brackets to the Total
Access 1500 Chassis, use the appropriate screws for the
Central Office rack type and mount the chassis in the
rack as follows:
1. Flush-mount: For flush-mount systems, the Total
Access 1500 chassis must be mounted from the
rear of the rack, with mounting bracket flanges
facing rearward.
2. Mid-mount: For mid-mount systems, the Total
Access 1500 chassis must be mounted from the
front of the rack, with the mounting bracket flanges
facing forward.
NOTE
Other orientations will require either mounting
from the front or rear, and depend on the rack
type installed in the CO and the standard
operating procedures established by your CO.
4
3) with the flanges
Issue 4, February 2009
Once the orientation of the chassis has been determined,
use four screws suitable to the CO rack and an appro-
priate screwdriver to secure the Total Access 1500
chassis in place on the rack.
Connections
Interconnections between the common card modules
and channel units are accomplished through the
backplane PCB. All external connections to the Total
Access 1500 are through connectors and wire-wrap
headers located on the backplane.
NOTE
When connecting power and ground wiring, be
sure to follow all local, national, and company
codes.
CAUTION
Per GR-1089-CORE October 2002, section 9,
this system is designed and intended only for
installation in a DC-C (common) Bonding and
Grounding System. It is not intended or
designed for installation in a DC-I (isolated)
Bonding and Grounding system.
All permanent connections to the Total Access 1500 are
made on the backplane. Figure 4
the power and ground connections, and
the backplane and pinouts.
IN RTN
-48V SEC
TB1
Pin Number
1
2
3
4
5

Figure 4. Power and Ground Connectors

shows the location of
Figure 5 shows
TB1
IN RTN
-48V PRI
Description
-48V IN SEC
-48V RTN SEC
-48V IN PRI
-48V RTN PRI
Frame Ground
61180001L1#S-5D