Adtran D4-OCU ユーザーズマニュアル
1
Section 61107005L2-5, Issue 3
61107.005L2-5C
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.
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
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.
is found in ADTRAN D4-OCU DP Description Practice,
Section 61107005L2-2.
The Office Channel Unit Dataport (OCU DP) allows
access to the Dataphone
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:
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
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.
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
3
4
5
6
7
8
9
10
7
8
9
10
SW1
CONTENTS
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
Figure 2. Rate Option Switch ............................................. 2
Figure 3. SW1 ..................................................................... 3
Figure 4. Connector Pin Assignments ............................... 4
TABLES
Table A. SW1 Option Settings ........................................... 3