ADTRAN ACT LIU Maintenance and service guide

1Section 61150070L1-5, Issue 461150070L1-5D
LIU
1150070L1
M
O
N
IN
OUT
F
A
C
IN
OUT
LOC LB
REM LB OFF
ARRCV
ESF
B8ZS
LC
TS
LC
PM
AY
AI
RM
TS
RM
PM
EXT LT LOC
TEST
PRACTICES
Section 61150070L1-5
Issue 4, January 1999
List 1: CLEI Code # D4IME2A_ _ _
ACT LIU
ADVANCED COMMUNICATIONSTERMINAL
LINE INTERFACE UNIT
INSTALLATION & MAINTENANCE
1. GENERAL
This section provides installation and maintenance
information for the ADTRAN Advanced
Communications Terminal Line Interface Unit (ACT
LIU). Figure 1 is an illustration of the unit. Detailed
product information can be found in ADTRAN
Description, Section 61150070L1-2.
Features
The basic features of the ACT LIU, List 1, part
number 1150070L1 include the following:
• Provides for T1 interface at the DSX-1 interface
• SF or ESF data framing formats
• AMI or B8ZS line code formats
• Local or remote loopbacks
• Front panel Bantam jacks for testing
• Front panel indicators showing the status of the
unit
• Front panel DB-9 connector for access to timing
signals for testing
Figure 1. ADTRAN ACT LIU List 1
• Local, loop, or external timing modes
• Composite clock output
• Installs in the ACT 2300 and ACT 1900 channel
banks
Revision History
Issue 4 adds a Note on the T1 interface and updates
the document format.
Description
The ADTRAN ACT LIU is a common card plug-in
for the ADTRAN ACT 2300 and ACT 1900 channel
banks. It connects the channel bank to a T1 line at the
DSX-1 level. All data formatting and line encoding
are performed by the ACT LIU. The ACT LIU also
provides timing for the channel bank.
CONTENTS
1. GENERAL .............................................................1
2. INSTALLATION....................................................2
3. TESTING................................................................3
4. MAINTENANCE...................................................4
5. WARRANTYAND CUSTOMER SERVICE ........5
TABLES
Table 1. ACT LIU Option Settings ............................3
Table 2. Port Data Settings .........................................3
Table 3. Faceplate Indicators .....................................5
FIGURES
Figure 1. ADTRAN ACT LIU List 1..........................1
Figure 2. Internal Switch Location .............................2
Figure 4. ACT LIU Functional Block Diagram..........4
Figure 3. Connector Pin Assignments ........................4
Figure 5. Faceplate Indication .....................................5

2 Section 61150070L1-5, Issue 4 61150070L1-5D
2. INSTALLATION
CAUTION
This equipment contains static sensitive
components.EnsureproperESDprocedures
are followed when handling or installing this
equipment.
After unpacking the unit, inspect it for shipping
damage. If damage is noted, file a claim with the
carrier, and then contact ADTRAN Customer Service
(see Warranty and Customer Service).
The ACT LIU, List 1 plugs directly into the ADTRAN
ACT 2300/1900 channel bank. No installatior wiring
is required.
The ACT LIU should be installed in the ACT 2300 or
ACT 1900 channel banks in the slot labeled LIU. To
install the ACT LIU, grasp the unit by the faceplate
and push the unit into the connector until the unit is
fully seated. Lock the unit into position with the two
faceplate screws.
NOTE
The T1 interface (DSX-1) is intended to be
connected to intra-building wiring only.
Provisioning Options
The ACT LIU is provisioned either manually, using
an internal nine-position internal DIP switch (SW2)
and a two-position faceplate-mounted DIP switch, or
electronically using a menu driven program called
EASYMENUTM. EASYMENUTM is accessed through
either the faceplate administrative port (ADMIN) of
the Bank Controller Unit (BCU) or the remote port
(REMOTE) on the rear of the ACT 2300/1900
chassis. Manual provisioning must be completed
before the LIU is inserted into the bank, while
electronic provisioning is completed following system
turn-up.
Manual Provisioning
DIP switch 2 (SW2) and the two-position faceplate-
mounted switch are used to manually provision the
unit.
Switch Option Settings
Switch 2 (SW2) selects line equalization, Payload or
Line loopback at the remote bank, line code format
[binary 8 zero substitution (B8ZS) or alternate mark
inversion (AMI), framing format [superframe (SF) or
extended superframe (ESF)], and timing source (local,
loop, or external). Figure 2 shows the location of
SW2 and Table 1 provides option settings.
NOTE
Switch setting SW2-3, Payload (PYLD) or
Line (LINE) loopback, works in conjunction
withthefront-panel,remote-loopbackswitch
oftheACTLIU.Theloopbackselectedusing
SW2-3 defines the type of loopback the
faceplate switch activates at the remote
channel bank.
Two-position Faceplate Switch
The two-position rocker switch shown in Figure 1
selects either the Operating or Test mode of the LIU.
The top switch enables or disables a local loopback
function. The bottom switch enables or disables a
remote loopback function which loops the signal back
at the remote bank. In both cases, moving the switch
to the left position enables the test function. Putting
both switches in the Off position (default) selects
normal operation.
Electronic Provisioning
ADTRAN EASYMENUTM is used to electronically
provision the unit. Connect a VT 100 terminal or a
computer running a terminal emulation program to the
faceplate ADMIN port or REMOTE port using a
standard male-to-male RS-232 cable. Table 2 shows
the settings for the ADMIN and REMOTE ports.
SF AMI LINE OFF OFF OFF OFF OFF OFF
ESF B8ZS PYLD LB2 LB1 LB0 EXT LOOP LOC
SW2
1
O
N
25634 897
SF AMI LINE OFF OFF OFF OFF OFF OFF
ESF B8ZS PYLD LB2 LB1 LB0 EXT LOOP LOC
SW1
1
O
N
25634 564
Figure 2. Internal Switch Location

3Section 61150070L1-5, Issue 461150070L1-5D
NOTE
Anullmodemcableisrequiredtoconnectthe
remote port directly to a terminal.
Once connected, enter the password. The factory
default is "PASSWORD" in all capital letters. The
Line Format, Line Code, Line Equalization, and
Primary Timing Source are provisioned by selecting:
• Common Module Menus (2)
• LIU (2)
• Provisioning (2)
• Format (1); Code (2); Equalization (3); Timing
Source (4)
The Local and Remote Loopbacks are activated by
selecting:
• Common Module Menus (2)
• LIU (2)
• Test (4)
• DS1 Active Loopback (1)
For additional information on EASYMENUTM
operation or the ADTRAN Site Manager, refer to the
EASYMENUTM User Manual, part number
61150.055L1-1 (found in the ACT 2300/1900 System
Manual, part number 2150.050-3), or the Site
Manager User Manual, part number 64150.075L1-1.
Connections
The ACT LIU occupies the common card position in
the ACT 2300 and ACT 1900 labeled LIU. The
connector pin assignments are detailed in Figure 3.
3. TESTING
Loopback Tests
The ACT LIU has two loopback modes: Local
loopback and Remote loopback. Either of the
loopback modes cause an interruption-of-service
alarm at the far-end terminal. Figure 4 shows
loopback points.
Local Loopback
Local loopback bridges the T1 line across the receiver
pair to the transmit pair, isolating the bank from the
T1 line. This allows internal bank testing, individual
card tests, and provides a baseline for line testing.
Table 1. ACT LIU Option Settings
noitcnuFhctiwSnoitceleSnoitidnoC
tamroFgnimarF1-2WS
NO
FFO )FSE(emarfrepuSdednetxE )FS(emarfrepuS
tamroFedoCeniL2-2WS
NO
FFO )SZ8B(gnidocenilnoitutitsbusorez8yraniB )IMA(gnidocenilnoisrevnIkraMetanretlA
kcabpooLetomeR
ehttanoitacoL
knaBetomeR
3-2WS
NO
FFO )DLYP(kcabpooLdaolyaP )ENIL(kcabpooLeniL
htgneLeniL )2BL(4-2WS )1BL(5-2WS
)0BL(6-2WS
htgneLeniL
tf011ot0
tf022ot011
tf033ot022
tf044ot033
tf055ot044
tf556ot055
4-2WS
5-2WS6-2WS
*FFO*FFO*FFO
NOFFOFFO
FFONOFFO
NONOFFO
FFOFFONO
NOFFONO
gnimiT
)TXE(7-2WS
)POOL(8-2WS
)COL(9-2WS
gnimiTlanretxE
gnimiTpooL
gnimiTlacoL
7-2WS
8-2WS9-2WS
*FFO*FFO*NO
FFONOFFO
NOFFOFFO .emitataNOebothctiwsenoylnO:etoN
tluafedyrotcaF*
troPNIMDAtroPETOMER
sgnitteS
duab0069duab2WS
ytirapoNytirapoN
stib8stib8
tibpots1tibpots1
Table 2. Port Data Settings

4 Section 61150070L1-5, Issue 4 61150070L1-5D
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
A32
1 FRM GND
2 CCAIN+
3 CCAIN-
4 +5 V
5 CCBIN+
6 CCBIN-
7 +12 V
8 INCLK
9 GND
10 -48 F
11 RSPV
12 TSPV
13 -48 V
14 YALMA
15 BALMA
16 RALMA
17 YALMB
18 BALMB
19 RALMB
20 TIMCLK
21 GND
22 RFRM
23 RDCLK
24 RPCM
25 GND
26 BCU ALM
27 TREF
28 TFRM
29 TPCM
30 TCLK
31 GND
32 SYSCLK
C1
C2
C3
C4
C5
C6
C7
C8
C9
C10
C11
C12
C13
C14
C15
C16
C17
C18
C19
C20
C21
C22
C23
C24
C25
C26
C27
C28
C29
C30
C31
C32
65
66 LOCCK+
67 LOCCK-
68 (MAD0)
69 GND (MAD1)
70 GND (MAD2)
71 -12 V
72
73 GND
74 -48 FRT
75
76 RREF
77 -48 VRT
78 FRZ
79 BT
80 BR
81 GND
82 GND
83 BT1
84 BR1
85 GND
86 AT
87 AR
88
89 GND
90 AT1
91 AR1
92
93 RNDIS
94 TKP
95 GND
96
J27
Row C
Row A
Figure 3. Connector Pin Assignments
Remote Loopback
The Remote loopback feature only operates in ESF
mode framing format. If ESF mode is optioned,
activating the Remote Loopback switch loops the T1
line of the remote bank. See Description Practice,
Section 61150070L1-2, for details of the loopback
sequence.
Faceplate Indicators
The ACT 2300 LIU has 13 faceplate indicators. The
indicators can be grouped into three categories:
Configuration, Status, and Test. Figure 5 shows
faceplate LEDs and Table 3 describes their meaning.
4. MAINTENANCE
The ACT LIU requires no routine maintenance to
operate properly. In case of equipment malfunction,
use the faceplate test connector and indicators to
determine the trouble source. The faceplate of the
ACT LIU contains the Bantam test jacks for a T1
tester such as a Phoenix 5575 test set.
The MON Bantam test jacks allow a test set to
monitor the T1 data stream without disturbing it. The
FAC Bantam test jacks allow a test set to intercept the
T1 data stream. Figure 4 shows the Bantam test jacks
in the ACT LIU Functional Block Diagram.
Repair services may be obtained by returning the
defective unit to the ADTRAN Repair Department
(see subsection ADTRAN Customer Service).
Figure 4. ACT LIU Functional Block Diagram
Clock and Data
Recovery
MON IN
Test Jack
DSX-1
RX
PAIR
FAC OUT
Test Jack
Line Format
Decoder To
ACT
BCU
To LIU
Controller
RPCM, RCLK,
RFRM
DSX-1 Receiver Circuitry
DSX-1 Transmitter Circuitry
MON OUT
Test Jack
Local
Loopback
Point
DSX-1
TX
PAIR
FAC IN
Test Jack
From
ACT BCU
Line
Loopback
Point
Payload
Loopback
Point
TPCM, TCLK,
TFRM
Equalizer Line Format
Encoder
DJAT
T1
R1
T
R

5Section 61150070L1-5, Issue 461150070L1-5D
5. WARRANTY AND CUSTOMER SERVICE
ADTRAN will replace or repair this product within
ten years from the date of shipment if it does not meet
its published specifications or fails while in service
(see: ADTRAN Telco Network Equipment Warranty,
Repair, and Return Policy and Procedure, document:
60000087-10A).
Contact Customer And Product Service (CAPS) prior
to returning equipment to ADTRAN.
For service, CAPS requests, or further information,
contact one of the following numbers:
ADTRAN Technical Support
[phone]
Standard hours: Monday-Friday, 7am-7pm CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Sales
[phone]
ADTRAN Repair/CAPS
[phone]
Repair and Return Address
ADTRAN, Inc.
Customer & Product Service (CAPS) Department
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
Table 3. Faceplate Indicators
DELnoitarugifnoC
TXE
TL
COL .edomgnimitevitcasetacidniNO
FSE
.detcelesFSEsetacidniNO
.detcelesFSsetacidniFFO
SZ8B .detcelesSZ8BsetacidniNO
.detcelesIMAsetacidniFFO
sutatS
RA.deralcedmralAdeRsetacidniNO
YA.deralcedmralAwolleYsetacidniNO
IA.deralcedmralASIAsetacidniNO
*MPCL .tinulacolfo)REB(etarrorretibsetacidnI 01<REB=FFO
5-
01>REB=NO
5-
*MPMR .tinuetomerehtfoREBsetacidnI 01<REB=FFO
5-
01>REB=NO
5-
VCR.detcetedsignimarfdilavnisetacidniNO
tseT
STCL
ehtgnipoolsitahtevitcasitsetanehwNO
asahcusknablacolehtsdrawotkcab1T
roenilaro,knablacolehttakcabpoollacol
.knablacolehttakcabpooldaolyap
STMR ehtgnipoolsitahtevitcasitsetanehwNO roenilasahcusknabetomerehtotkcab1T
.knablacolehttakcabpooldaolyap
.ylnoedomFSEnielbacilppA*
LIU
1150070L1
M
O
N
IN
OUT
F
A
C
IN
OUT
LOC LB
REM LB OFF
ARRCV
ESF
B8ZS
LC
TS
LC
PM
AY
AI
RM
TS
RM
PM
EXT LT LOC
TEST
+5 V
GND
64 kHz
8 kHz
1
2
3
4
5
6
7
8
9
Figure 5. Faceplate Indication