ADTRAN D4-OCU Switch User Manual


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1Section 61107005L2-5, Issue 361107.005L2-5C
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
PRACTICES
Section 61107005L2-5
Issue 3, June 1996
CLEI Code #
D4DA740 _ _ _
D4-OCU DP (ETR)
ALL-RATE OFFICE CHANNEL UNIT DATAPORT
WITH EXTENDED TRANSMIT RANGE
INSTALLATION/MAINTENANCE
1. GENERAL
This practice has been reissued to correct enhanced
Switch 56 references.
This practice is an installation and maintenance guide
for the ADTRAN Office Channel Unit Dataport (D4-OCU
DP) with Extended Transmit Range
1
(ETR). Figure 1 is
an illustration of the unit. A detailed product description
is found in ADTRAN D4-OCU DP Description Practice,
Section 61107005L2-2.
The Office Channel Unit Dataport (OCU DP) allows
access to the Dataphone
®
Digital Service (DDS)
or
Basic Digital Service using existing 4-wire metallic
facilities and D4 channel banks equipped for dataport
operation. In addition to this interchangeability, the
ADTRAN D4-OCU DP contains the following
enhancements:
• Extended loop range
2
(45 dB receiver range
when operated at all rates)
• Intermediate rate of 19.2 kbps; special format
3
________________________________________
1
Covered under I.N.C. patent number 4,887,278
Dataphone is a registered trademark of AT&T
2
Covered under ADTRAN patent number 4,759,035
3
Covered under I.N.C. Patent No. 4,862,480
Figure 1. ADTRAN D4-OCU DP
• Switched 56 capability
• Latching and normal loopbacks
• Latching loopback capability in SW56 mode
• Loss of sealing current disconnect
• Poor loop signal quality disconnect
• Hardware signaling selection
• 45 dB range at all rates
• Faceplate Bantam jacks
• Four diagnostic faceplate indicators
• Extended transmit range
Furnished with common equipment and individual channel
units, the D4 channel bank is a digital terminal providing
multiple-channel access to T carrier lines. The dataport
is a D4-type channel unit which allows direct digital
access to a T carrier time slot, avoiding the normal
analog-to-digital conversion required in a voice channel
unit.
OCU DP
1107005L2
D4-OCUDP
9.6
9.6
19.2
19.2
38.4
38.4
56
56
64
4.8
4.8
2.4
2.4
SW56
SC
LOOP BACK
IDLE CKT
NO SX
AUTO DIS
RX (OUT)
TX (IN)
O
N
1 2 3 4 5 6 7 8 9 10
SW1
CONTENTS
1. GENERAL ...................................................................1
2. INSTALLATION...........................................................2
3. CONNECTIONS..........................................................3
4. TESTING.....................................................................3
5. AUTO LOOP DISCONNECT ......................................4
6. MAINTENANCE ..........................................................4
7. WARRANTY AND CUSTOMER SERVICE ................4
FIGURES
Figure 1. ADTRAN D4-OCU DP.........................................1
Figure 2. Rate Option Switch .............................................2
Figure 3. SW1 .....................................................................3
Figure 4. Connector Pin Assignments ...............................4
TABLES
Table A. SW1 Option Settings ...........................................3
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