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ADTRAN DSU/CSU Installation And Maintenance Manual

Trocu dp preferred option total reach all-rate dds dataport.
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CONTENTS
1. GENERAL ..................................................................... 1
2. OPTIONS ...................................................................... 2
3. INSTALLATION ........................................................... 3
4. TESTING ....................................................................... 3
DIAGNOSTICS ............................................................. 4
6. DEPLOYMENT GUIDELINES .................................... 5
FIGURES
Figure 1. TROCU DP Preferred Option ............................. 1
Figure 3. Option Switch ..................................................... 2
Figure 4. Rate Selection ..................................................... 2
Pass-Thru Mode ................................................. 4
Figure 7. TROCU DP Bidirectional Loopback
Normal Mode ..................................................... 4
TABLES
Table 1. Preprovisioning ..................................................... 3
Table 3. LED Indicators ..................................................... 5

1. GENERAL

This practice provides installation and maintenance
procedures for the ADTRAN D4 Total Reach Office
Channel Unit Dataport (TROCU DP) Preferred
Option. The unit is illustrated in Figure 1.
Document Revision History
Issue 2 of this document revises the Deployment
Guidelines subsection.
Description
ADTRAN D4 TROCU DP Preferred Option is a
functional replacement for the D4 OCU DP,
delivering data at rates up to 64 kbps on a single
copper pair. Used in combination with the Total
Reach Digital Data Service Remote termination unit
(TRDDS-R), the TROCU DP can accommodate
extended loop lengths eliminating the need for DDS
repeaters. The TROCU DP span powers the remote
TRDDS-R located at the customer premise. The
TRDDS-R converts the two-wire signal to the
Trademarks: Any brand names and product names included in this document are
61291006L2-5B
trademarks, registered trademarks, or trade names of their respective holders.
Model TROCU DP Preferred Option
Total Reach
All-Rate DDS Dataport
®

Installation and Maintenance

CLEI Code #D4D3MPY_ _ _

Figure 1. TROCU DP Preferred Option

traditional four-wire Alternate Mark Inversion (AMI)
signal for presentation to the customer.
The TROCU DP occupies a single channel position in
the WECO
®
compatible D4 channel bank or the
AT&T
®
SLC-96 Mode I and III terminal. It provides
the interface between a DS0 timeslot of the T-carrier
data stream, and the two-wire metallic loop extending
to the customer premises.
The TROCU DP may interoperate over the carrier
system with another TROCU DP, an OCU DP, a DS0
DP, a 1/0 DCS, or the central office switch. The unit
can be located in an end office, hub office,
intermediate office, or remote terminal digital carrier
system (see Figure 2). The two-wire loop is
connected using the tip (pin 24) and ring (pin 51) on
the D4 backplane.
D4 or SLC-96
TR
2-Wire Loop
T-Carrier
OCU
DP
T/R Pair

Figure 2. Total Reach DDS Circuit Diagram

Section 61291006L2-5
Issue 2, June 1999
D P
T R O C U
6L 2
12 91 00
IR E
S D 4 2- W
SC
64
56
19 .2
9.6
SY NC
LO SS
4.8
2.4
NE AR
SW 56
CR C
FA R
CR C
RE M
Q M
AP
DI SC
NO
DS U
LB K
ID LE
L
Rx
O
(O UT )
G
I
C
Tx
(IN )
Customer Premises
4-Wire Customer
Interface
TRDDS-R
DSU/CSU
1

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Table of Contents

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   Summary of Contents for ADTRAN DSU/CSU

  • Page 1: Table Of Contents

    Table 4. TRDDS Insertion Loss Measurements ... 5 1. GENERAL This practice provides installation and maintenance procedures for the ADTRAN D4 Total Reach Office Channel Unit Dataport (TROCU DP) Preferred Option. The unit is illustrated in Figure 1. Document Revision History Issue 2 of this document revises the Deployment Guidelines subsection.
  • Page 2: Options

    The TROCU DP provides a constant 10 mA sealing current to the TRDDS-R. With 10 mA sealing current and span power of -130 Vdc, ADTRAN’s TRDDS system is in the A3 Class as specified in Bellcore TR-NWT-001089, Standard for Electrical Safety for Network Telecommunications Equipment.
  • Page 3: Installation

    OR DECREASE IN RELIABILITY. HANDLING PRECAUTIONS REQUIRED. The TROCU DP plugs directly into a WECO or equivalent D4 channel bank or the ADTRAN ACT 1900/2300 channel bank. No special wiring is required. The two-wire loop uses the T/R (Tip and Ring) pair, pins 24 and 51 of the D4 backplane.
  • Page 4: Remote Provisioning And Diagnostics

    5. REMOTE PROVISIONING AND DIAGNOSTICS Control Protocol Remote access to provisioning and status information is accomplished using ADTRAN Digital System 6 Message protocol, defined in Control and Diagnostic Procedures Practice, Section 6032991-6. Digital System 6 is supported by the TPI 108/109 and 105 portable test set and is supported by Hekimian React 2001 Release 1.900 remote test system.
  • Page 5: Deployment Guidelines

    and manual switch settings by pressing the momentary Alternate Provisioning (AP) switch located on the front panel. If the channel unit is removed from the system, the unit retains previous provisioning information in nonvolatile Random Access Memory (RAM). The REM indicator remains ON when the channel unit is operating based on Remote Provisioning, and is OFF when operating on manual switches.
  • Page 6: Warranty And Customer Service

    7. WARRANTY AND CUSTOMER SERVICE ADTRAN will replace or repair this product within 10 years from the date of shipment if it does not meet its published specifications or fails while in service (see: ADTRAN Carrier Networks Equipment Warranty, Repair, and Return Policy and Procedure, document: 60000087-10A).

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