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64200376L1-5A

Issue 14, April 2003

CLEI Code: SILCHL0DAA

Total Access 850 System Installation and Maintenance

64200376L1-5A

1

Trademarks: Any brand names and product names included in this document are 
trademarks, registered trademarks, or trade names of their respective holdres.

Contents

1. General ........................................................................... 1
2. Product Overview ........................................................ 1
3. Installation ..................................................................... 3
4. Specifications................................................................. 7
5. Maintenance .................................................................. 7
6. Warranty and Customer Service ................................ 7
7. Regulatory Requirements............................................ 7

Figures

Figure 1. Total Access 850 ............................................... 1
Figure 2. Total Access 850 Backplane ............................ 2
Figure 3. Total Access 850 Component Layout and 

Cable Connections ........................................... 3

Figure 4. Connector Pinout ............................................. 5
Figure 5. T1 Connections................................................. 5
Figure 6. Alternate Power Connection .......................... 6
Figure 7. Office Alarm Connections .............................. 6

Tables

Table 1. Total Access 850 Backplane Connections....... 4
Table 2. Wire Wrap Identification.................................. 6
Table 3. Alarm Notification............................................. 6
Table 4. Specifications and Part Numbers .................. 10

1.

GENERAL 

This practice provides installation and maintenance 
procedures for the ADTRAN Total Access 850 System. 
The Specifications and Part Numbers Table (Table 4 on 
page 10) shows 
part numbers for equipment and docu-
ments referenced in this practice. Referenced practices 
should be on-hand during system installation.

Revision History 

Update document to reflect PSU hardware changes. 
Updated Figures 1, 2, and 4. Removed IPX routing. Cor-
rected CAPS address. Updated Backup Battery Pack 
Part Number List. Corrected connector reference.

2.

PRODUCT OVERVIEW

The Total Access 850 system (see Figure 1) is an 
integrated access device designed for cost-effective 
deployment of voice and data services at the customer’s 

premises. The Total Access 850 system benefits 
integrated communications providers, such as CLECs, 
ILECs, and ISPs, who require a customer premises 
device that integrates voice and data functions, and 
provides a viable migration path from TDM to packet-
based technology. The Total Access 850 features remote 
management, an integrated IP router, and special 
services slots.

Figure 1.  Total Access 850

The Total Access 850 is a modular device, with two 
common slots and eight access slots. Common cards 
required for operation are a power supply unit (PSU) 
and a system controller. System controllers include a 
bank controller unit (BCU) (L1 and L2) and a router 
control unit (RCU). The RCU includes a wide area 
network interface (T1 or SDSL), DSX-1 PBX interface, 
Nx56/64 V.35 interface, and built-in IP router. Six 
access slots allow the user to combine a variety of voice 
and data services. Up to six Quad FXS or Quad FXO 
access modules can be installed to support up to 24 
analog voice lines. Other access modules for data 
applications include the OCU DP (only supported in 
the BCU) and ISDN U-BR1TE. The other access slots are 
used for Nx56/64 module with the BCU, the Echo 
Cancellation card for use with the T1 ATM RCU, and 
the DSX-1 card used with the T1 TDM RCU. 

Using local or remote inband management, carriers can 
turn features, functions, and access ports on and off. 
Easy access to modules, common cards, power 
supplies, and the battery back-up system simplify 
maintenance procedures. Hot-swappable modules may 
be replaced without disrupting other units. The four-
circuit-per-module design ensures that only four 
analog circuits are affected when replacing a module. 

NOTE

This is not an operational manual. To obtain an 
operational manual, contact ADTRAN Technical 
Support at (888) 4ADTRAN.

Summary of Contents for 1200375L1

Page 1: ...tomer s premises The Total Access 850 system benefits integrated communications providers such as CLECs ILECs and ISPs who require a customer premises device that integrates voice and data functions and provides a viable migration path from TDM to packet based technology The Total Access 850 features remote management an integrated IP router and special services slots Figure 1 Total Access 850 The...

Page 2: ...y unit P N 1175043L2 which mounts externally to the chassis Connector P7 is used when 48 VDC is available on site and screw type terminal connections are required Figure 2 Total Access 850 Backplane PSU The Power Supply Unit supplies 48 VDC and 20 Hz ringing voltage to the RCU BCUs and access modules The PSU converts 48 VDC input to the required voltages needed to operate all common units and acce...

Page 3: ...ry equipment grounding conductor shall not be smaller in size than the ungrounded branch circuit supply conductors The supplementary equipment grounding conductor shall be connected to the product at the terminal provided and shall be connected to ground in a manner that will retain the ground connection when the product is unplugged from the receptacle The connection to ground of the supplementar...

Page 4: ...s 1 Unscrew the access cover hold down screw 2 Slide the access cover down slightly to disengage the lock tabs from their slots 3 Identify the wire wrap pins designated for use and make the connections starting with the pins closest to the exit port to avoid wiring interference as work progresses 4 If alternate power connection to P7 is to be used make those terminal connections last 5 Carefully r...

Page 5: ...ioned on the RCU Power Connection There are two power connections on the backplane a modular DC plug P6 and a three lug terminal strip P7 Refer to Figure 2 on page 2 The primary connection is the modular plug which receives 48 VDC from the ADTRAN power supply battery charging unit P N 1175043L2 The alternate connection is screw terminal P7 which can be used if 48 Vdc is available as in central off...

Page 6: ...ate If the 3 Amp power fuse on the PSU trips the 48ALM relay will close providing a 48 VDC signal on that pin This alarm cannot be overridden by the ACO pushbutton Refer to Table 3 on page 6 for alarm notifications Table 2 Wire Wrap Identification Figure 7 Office Alarm Connections Table 3 Alarm Notification NOTE The following section is for information only and the features described are not neces...

Page 7: ... requests training or more information use the contact information given below Product Support Information Pre Sales Inquiries and Applications Support Please contact your local distributor ADTRAN Appli cations Engineering or ADTRAN Sales Post Sale Support Please contact your local distributor first If your local distributor cannot help please contact ADTRAN Technical Support and have the unit ser...

Page 8: ...r B A training course provided by the customer or authorized representative using training materials and instructions provided by the manufacturer grantee of the equipment used to encode analog signals or C An independent training course e g trade school or technical institution recognized by the manufacturer grantee of the equipment used to encode analog signals or D In lieu of the preceding trai...

Page 9: ...t the Industry Canada technical specifications were met Notice The Ringer Equivalence Number REN for this terminal equipment is supplied in the documentation or on the product labeling markings The REN assigned to each terminal device indicates the maximum number of terminals that can be connected to a telephone interface The termination on an interface may consist of any combination of devices su...

Page 10: ...200373L1 BCU with Fractional T1 1200373L2 PSU 1175006L2 Quad FXS 1175408L2 User Manual 61175408L1 1A Quad FXO 1175407L2 User Manual 61175407L1 1A AC Power Supply Battery Charger 1175043L2 Backup Battery Pack 1175044L1 L2 L4 Single Unit 19 Rack Mount Brackets 1175045L1 Single Unit 23 Rack Mount Brackets 1175046L1 Sample System Configuration Part Numbers Total Access 850 DC RCU Chassis Bundle 420037...

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