advertisement
Section 61220010L2-5C
Issue 3, April 2001
CLEI # NCT1TX2B _ _
T200 IDSL OCU-R
Remote Termination Unit
Installation and Maintenance
CONTENTS
1. GENERAL .......................................................................... 1
2. OPTIONS ........................................................................... 2
3. INSTALLATION ............................................................... 3
4. TESTING ............................................................................ 5
5. CONTROL PORT OPERATION ...................................... 7
6. REMOTE PROVISIONING AND DIAGNOSTICS ...... 16
7. MAINTENANCE ............................................................. 16
8. DEPLOYMENT GUIDELINES ...................................... 16
9. WARRANTY AND CUSTOMER SERVICE ................ 16
FIGURES
Figure 1.
IDSL OCU-R ......................................................... 1
Figure 2.
IDSL/DDS Circuit Diagram ................................. 2
Figure 3.
Circuit Card Pin Assignments ............................... 4
Figure 4.
IDSL/DDS Trouble Codes .................................... 6
Figure 5.
ADTRAN U-BR1TE Bidirectional Loopback ..... 6
Figure 6.
IDSL/DDS Remote End Initiated Loopback,
Local Loop ............................................................ 7
Figure 7.
IDSL/DDS Remote End Initiated Loopback,
Customer Loop ...................................................... 7
Figure 8.
RS-232 (DB-9) Pin Assignments .......................... 7
Figure 9.
Main Menu Screen ................................................ 9
Figure 10. Terminal Modes Menu Screen .............................. 9
Figure 11. System Status Screen .......................................... 10
Figure 12. IDSL Detailed Status Screen ............................... 10
Figure 13. Loopbacks Screen ................................................ 11
Figure 14. Performance Monitoring Screen ......................... 11
Figure 15. U-BR1TE 15-Minute Performance Monitoring
Screen .................................................................. 12
Figure 16. U-BR1TE 24-Hour Performance Monitoring
Screen .................................................................. 12
Figure 17. Frame Relay 15-Minute Performance Monitoring
Screen .................................................................. 13
Figure 18. Frame Relay 24-Hour Performance Monitoring
Screen .................................................................. 13
Figure 19. Event Log Screen ................................................ 14
Figure 20. Set Circuit ID Screen ........................................... 14
Figure 21. Set Date and Time Screen ................................... 15
Figure 22. ADTRAN Information Screen ............................ 15
TABLES
Table 1.
Options .................................................................. 2
Table 2.
Protected Loopback Mode Requirement
T1E1.2/99-007R1 (Latching Loopback) .............. 3
Table 3.
Compliance Codes ................................................ 4
Table 4.
Wiring Connections .............................................. 4
Table 5.
LED Indicators ...................................................... 5
Table 6.
Alternating Loopback Sequences ......................... 5
Table 7.
Latching Loopback Sequences ............................. 5
Table 8.
Definition of Screen Abbreviations ...................... 8
O
F
F
IDSL
OCU-R
1220010
SYNC
CRC
NO
DSU
AP
NTWK
LBK
CUST
LBK
LBK
SC
64
56
19.2
9.6
4.8
2.4
SW
56
O
F
F
-10 dB
QM
EC
LL
EN
Frame IQ
LISTED
CUSTOM
TELECOM
E190349
SW 2
SW 4
SW 1
Figure 1. IDSL OCU-R
1. GENERAL
This practice provides installation and maintenance procedures for the IDSL OCU-R Remote Termination
Unit. Figure 1 is an illustration of the ADTRAN
IDSL OCU-R (P/N 1220010L2).
Revision History
Issue three of this document replaces the term IDSL-R with OCU-R, where it is appropriate.
Description
The ADTRAN IDSL OCU-R is a termination unit designed to deliver data rates up to 64 kbps and provide testing functionality at the customer premises.
The IDSL OCU-R converts an industry standard
61220010L2-5C 61220010L2-5, Issue 3 trademarks, registered trademarks, or trade names of their respective holders.
1
2-wire Integrated Services Digital Network (ISDN)
U-interface to the traditional 4-wire DDS signal for presentation to the customer.
The IDSL OCU-R is a digital network interface device located at the customer premises point-ofdemarcation. In addition to terminating the ISDN
U-interface, the IDSL OCU-R functions as a regenerative loopback device supporting Telcogenerated testing. The IDSL OCU-R unit is available in T200 mechanics and can be optioned for
0 or -10 dB output toward the customer. Figure 2 illustrates the IDSL OCU-R Circuit Diagram. The
IDSL OCU-R is powered from -120 Vdc constant voltage supplied by a U-BR1TE with PWR, or -48
Vdc provided by a locally powered T200 compatible mounting.
T-Carrier
Channel Bank
U
B
R
1
T
E
2-Wire Loop
T/R Pair
Customer Premises
4-Wire Customer
Interface
IDSL OCU-R
DSU/CSU
Figure 2. IDSL/DDS Circuit Diagram
Features
• 2-wire DDS deployment provided over a
U-interface.
• Dual powering capability; Locally powered by
-48 Vdc provided by mounting assembly or by
-120 Vdc from a U-BR1TE with PWR.
• DB-9 craft interface access for provisioning, testing, and performance monitoring.
• Frame IQ/ADS-6 provide physical layer and
Frame Relay PM and inband PM access respectively.
• Protected loopback prevents false latching loobpack at 64 kbps.
• Switch selectable data rate including subrates,
19.2 and 56 kbps rates, including secondary channel, and 64 kbps clear channel capability.
• LED indicators for operational status.
• T200 mechanics.
• Transmits Abnormal Station Code upstream during out-of-service 4-wire customer loop condition.
2. OPTIONS
Options and rate are selected with the front panel DIP switches as shown in Figure 1 and listed in Table 1.
S w i t c h
S C
6 4
5 6
1 9 .
2
9 .
6
4 .
8
2 .
4
S W 5 6
1 0 d B
Q M
E C
L L E N
Table 1. Options
D e s c r i p t i o n
O N
1 9 .
2 , s e l e c t s t h e S e c o n d a r y
9 .
6 , 4 .
8 , o r 2 .
4 a r e s e
C l e h a n n c t e d e l i f 5 6 ,
O N s e l e c t s 6 4 k c l e a r c h a n n e l d a t a
O N s e s e l e c t s l e c t
5 6 s k
5 6 k s e c d o n a t a a d a r y n c d , h a i f S C n n e l
= O d a t a
N ,
O N s e s e l e c t s l e c t s 1
1 9 .
2 k
9 s
.
2 k e c o d a t a a n d , n d a r y i f S C = O c h a n n e l d a t a
N ,
O N s e l e c t s 9 .
6 k s e l e c t s 9 .
6 k d a t a r s e c o n d a r y a t e c h a a n d , i f n n e l d a
S C t a
= O N ,
O N s e l e c t s 4 .
8 k s e l e c t s 4 .
8 k d a t a r s e c o n d a r y a t e c h a a n d , i f n n e l d a
S C t a
= O N ,
O N s e l e c t s 2 .
4 k s e l e c t s 2 .
4 k d a t a r s e c o n d a r y a t e c h a a n d , i f n n e l d a
S C t a
= O N ,
O N s e l e c t s S w i t c h e d 5 6 o p e r a t i o n
O N r e d a p p r o x u c e s i m a t e l
D D S y 1 0 t r a d B n s m i t s i g n a l b y
O N e n a b l e s q u a l i t y m o n i t o r i n g
O N v a l i d s e l e c t f o r s e r r o r r a t e s o f c o
1 9 r r e
.
2 c t k i o o r n m o d e .
l o w e r
O n l y l
O N o o a l p b l o a w c k s s ; u u n n i i t t t o r e s p o n d t o l a t c h i n g a l w a y s r e s p o n d s t o n o n l a t c h i n g
O F F w h l o i l e o p i n b a c k s
6 4 k
P e
L n a
B b l f e a t e d u i n r e ; t h i d a t a l a t c h i n g s m o d e m o d e w i l l e n a b l e l o o p b a c k s a r e a l w a y s
Customer Interface Transmit Line Build Out
When -10 dB (SW1-1) is ON, the IDSL OCU-R transmits a -10 dB AMI signal across the 4-wire customer interface toward the CSU/DSU. When OFF is selected the unit transmits a 0 dB AMI signal toward the CSU/DSU.
2 61220010L2-5, Issue 3 61220010L2-5C
Quality Monitor (QM)
When QM (SW1-2) is ON, the IDSL OCU-R monitors the customer interface for errors. If excessive errors are detected the unit blocks customer data transmission and sends Abnormal Station Code to the network. Customer data transmission is automatically restored when the trouble condition is cleared.
Error Correction (EC)
When EC (SW1-3) is ON, the unit enables the appropriate technique to ensure data integrity across the digital network.
Latching Loopback Enabled (LLEN)
When LLEN (SW1-4) is ON, the IDSL OCU-R will respond to latching loopback sequences.
False Loopback Immunity
ADTRAN’s Protected Loopback family of channel units include an algorithm compatible with SARTS,
Hekimian, TPI, and other test systems that virtually eliminates false latching loopback occurrences. This algorithm is always enabled at 64 kbps. In addition,
ADTRAN’s Protected Loopback family features a
Protected Loopback mode for further false latching loopback protection.
Latching Loopback
During operation up to 56 kbps, with LLEN enabled
(SW1-4 ON), the IDSL OCU-R will respond to the legacy OCU latching loopback sequences and translates CSU latching loopback sequences to the
DSU/CSU per TR62310 and ANSI T1.417. With
LLEN OFF, the IDSL OCU-R will not respond to latching loopback.
At 64 kbps the function of the LLEN switch is altered.
At 64 kbps, placing LLEN ON will permit the IDSL
OCU-R to respond to the legacy latching loopback sequence per TR62310 and ANSI T1.417. At 64 kbps, with LLEN OFF, the IDSL OCU-R enables
ADTRAN’s Protected Loopback.
Protected Loopback
ADTRAN’s Protected Loopback supports the new proposed DDS latching loopback standard in T1E1.2/
99-007R1. When enabled, the IDSL OCU-R will respond to latching loopback when the idle code preamble is sent prior to the latching loopback sequence specified in TR62310 and ANSI T1.417.
See Table 2 for the latching loopback sequence requirement when Protected Loopback is enabled.
Table 2. Protected Loopback Mode
Requirement T1E1.2/99-007R1 (Latching
Loopback)
Sequence
Function
Exit data protocol
Byte Code
Idle - 11111110
Clear existing loopbacks
Identify device to be looped
Transition in progress (TIP)
X0111010
Minimum of
35 TIP bytes
Loopback select code (LSC)
X0000101 - DS0
X1010101 - OCU
X0110001 - CSU
Minimum of
35 LSC bytes
Prepare to loop; send MAP code after 30 bytes
Loopback enabled (LBE)
X1010110
Minimum of
100 LBE bytes
Activate loopback
Far-End voice
(FEV)
X1011010
Minimum of
32 FEV bytes
Minimum of 35 TIP bytes required to disable established latching loopback.
X = Don't care bit
3. INSTALLATION
C A U T I O N !
SUBJECT TO ELECTROSTATIC DAMAGE
OR DECREASE IN RELIABILITY.
HANDLING PRECAUTIONS REQUIRED.
# of Received
Bytes
Minimum of
35 Idle bytes
After unpacking the unit, inspect it for damage. If damage is noted, file a claim with the carrier, then contact ADTRAN. See Warranty and Customer
Service.
WARNING
• Never install telephone wiring during a lightning storm.
• Never install telephone jacks in wet locations unless the jack is specifically designed for wet locations.
• Never touch uninsulated telephone wires or terminals unless the telephone line has been disconnected at the network interface.
61220010L2-5C 61220010L2-5, Issue 3 3
Wiring
The ADTRAN IDSL OCU-R may be mounted in any standard T400/T200 housing, or the following
ADTRAN T400/T200 housings:
CAUTION
On span-powered units, ensure ground continuity exists between the unit, the housing, and a known approved ground source.
Span Power Applications
• Single Mount Housing
• Dual Mount Housing
P/N 1212007L1
P/N 1212008L1
For 2-wire DDS deployment from D4/SLC-96 and
SLC-5 channel banks, a repeater powering U-BR1TE is used to provide the metallic 2-wire DDS interface.
In these cases, the IDSL OCU-R is span-powered with
-120 Vdc and the customer premises installation should include a span-powered mounting.
Local Power Applications
• Single Mount Housing P/N 1212007L2
For 2-wire DDS deployment from non-ADTRAN digital loop carrier U-BR1TEs, the IDSL OCU-R must be locally powered with customer provided AC. For these applications a local powered T400/T200 mounting is required.
Table 3 shows the Compliance Codes for the IDSL
OCU-R. The IDSL OCU-R complies with the requirements covered under UL 1459 third edition and is intended to be installed in an enclosure with an
Installation Code (IC) of “B” or “E”. The IDSL
OCU-R is intended for installation in restricted access locations only. Maximum input current at max load is
32 mA @ -48 Vdc with an output of 6 mA @ 10 Vdc.
Connections are made using screwdown terminals on the barrier strip located in the rear of a single mount housing. Figure 3 describes the circuit card pinout.
Table 4 shows the wiring connections for the IDSL
OCU-R.
The housing should be wired as follows:
• Network pair to terminal strip TR and TT positions.
• To Customer and From Customer pairs through customer 8-pin RJ-48 modular connector.
or
• To Customer (DRT, DRR) and From Customer
(DTR, DTT ) to designated terminal strip positions.
• Local -48 Vdc power supplied to pins 17 (GND) and 35 (-48 Vdc) of mounting is provided only when the OCU-R is not span-powered from the
2-wire IDSL loop.
-48 Vdc RET
-48 Vdc PWR
To
Network
IDSL OCU-R
17
35
(TT)
(TR)
41
47
11
27
Frame Ground
55
49
5
15
(DTT)
(DTR)
(DRT)
(DRR)
From
Customer
To
Customer
Figure 3. Circuit Card Pin Assignments
NOTE
The DDS customer port is classified as suitable for connection to intra-building or non-exposed wiring only.
P o w
T e
I n s e r l e c o t a l l a
C o
Table 3. Compliance Codes d e m m u n t i o n
(
C i c
C o o d e d
P C )
( e a t i o n C o
I C ) d e ( T C )
I n p u t
F
X
A
O u t p u t
C
–
–
P a i r
T o / F r o m
N e t w o r k
T o
C u s t o m e r
( R x )
F r o m
C u s t o m e r
( T x )
Table 4. Wiring Connections
T e r m i n a l S t r i p
D e s i i g n a t i o n s
T T , T R
T 4 0 0 P i n
N u m b e r
4 1 , 4 7
C u s t o m e r
R J 4 8
D R T , D R R
D T R , D T T
5 , 1 5
4 9 , 5 5
7 , 8
1 , 2
4 61220010L2-5, Issue 3 61220010L2-5C
LED Indication
The IDSL OCU-R front panel LEDs display the operating status. The LEDs are described in Table 5.
L E D
S Y N C
C R C
N O D S U
A P
N T W K L B K
C U S T L B K
Table 5. LED Indication
C o l o r D e s c r i p t i o n
R E D I n d i c a t e s t h a t t h e r e i s n o n e t w o r k
I n d i c a t e s n e t w o r k s y n c h r o n i z a t i o n .
s y n c .
G R E E N
R E D O N i n d i c a t e s t h a t
O F F i n d i c a t e s n o t h e r e a r e C
C R C e r r o r s .
R C e r r o r s .
Y E L L O W O N i n d i c a t e s n o s i g n a l , c u r r e n t , n o S C f r a m i n g .
n o s e a l i n g
O F F i n d i c a t e s s i g n a l , s e a l i n g c u r r e n t ,
S C f r a m i n g a c h i e v e d .
a n d
G R E E N O N i n d i c a t e s t h a t t h e r e m o t e l y p r o v i s i o n e d .
u n i t h a s b e e n
F L A S H I N G i n d i c a t e s r e m o t e a c t i v e .
c o n t r o l l i n k
O F F i n d i c a t e s l o c a l l y p r o v i s i o n e d o p e r a t i o n .
Y E L L O W O N i n d i c a t e s a l o o p b a c k t o w a r d s t h e n e t w o r k
C u s t o m e r i s i i n v o k e d n t e r f a c e a i n t r
R T ' s D D S e s p o n s e t o T e s t
C e n t e r i s s u i n g O C U l o o p b a c k .
F L A S H I N G i n d i c a t e s l o o p b a c k t o w a r d n e t w o r k n e t w
R T ' s o r k r e s p i s o n i n s e v o o k e f d r e a c o m m a n d e d v e t r
C s i
S U
C S U n g
/ s
D e a
S l i
U l o o p b n g v a c i k a
, a n d c u r r e n t t o C S U / D S U .
Y E L L O W O N i n d i c a t e s a l o o p b a c k t o w a r d s t h e c u s t o m e r i s i n v o k e d a t I D S L O C U R i n t e r f a c e v i a f r o n t p a n e l
F L A S H I N G i n d i c a t e s a l
L B K b u t t o n .
o o p b a c k t o w a r d s t h e
U B c u s t o m e r
R 1 T E v i a i s i n v o k e d
I D S L O C a
U t t
R h e A D T R A f r o n t p a n e l
N
L B K b u t t o n .
4. TESTING
Loopback Testing
Loopback tests can be performed from the Central
Office (CO) to verify proper loop and IDSL OCU-R operation. The IDSL OCU-R provides a network loopback in response to an OCU latching or nonlatching loopback command. The IDSL OCU-R also provides a sealing current reversal when the CSU loopback command is detected. Alternating loopbacks may be performed at all rates, except 64 kbps Clear Channel. See Table 6 for alternating loopback sequences. See Table 7 for latching loopback sequences.
Table 6. Alternating Loopback Sequences
S e q u e n c e
F u n c t t i i o n
A c t i v a t e l o o p b a c k
M a i n t a i n t e s t f o r b i t l o o p b a c k e r r o r s a n d
C l e a r l o o p b a c k
X = D o n ' t c a r e b i t
R e c e i v e d B y t e s
F o u r s p e c i f c o n i e d s e c u t i v e l o o p b a c k b y t e s c o d e o f
X 0 1 0 1 0 1 0
X 0 1 0 1 0 0 0
X 0 1 0 1 1 0 0
-
-
-
O
C
D
C
S
S
U
U
U l
D a t a b y t e o o p b a c k a l t e r n a t i n g c o d e w i e x a m p l e :
X D D D D D D 1 / X 0 1 0 1 0 1 0 t h
F o u w i t h r o c o n u t C s e c u t i
S U v e l o o p d a t a b a c k b y t e s c o d e
Table 7. Latching Loopback Sequences
S
F e u q n u c e t i n o c e n
B y t e C o d e l
C l o o e a r p b e x a c k i s t s i n g T r a n p r o g r s i e t i s o s n i n
( T I P )
X 0 1 1 1 0 1 0
I d e n t i f y b e l o o p d e d e v i c e t o L c o o o d e p b a c k s e l e c t
( L S C )
X 0 0 0 0 1 0 1
X 1 0 1 0 1 0 1
X 0 1 1 0 0 0 1
-
-
-
D
O
C
S
C
S
0
U
U
M
3
3
N u m b e r o f
R e c e i v e d
B y t e s
5
5
M i i n n
T i i m u
I P m u
L S C m o f b y t e s m o f b y t e s
P r e p a r e s e n d M t o
A P l o o p ; c o d e a f t e r 3 0 b y t e s
L o o p b a c k
( L B E )
X 1 0 1 0 1 1 0 e n a b l e d
1
M
0 0 i n i m u
L B E m o f b y t e s l
A o c o t p i v b a a t e c k
F a r E n d
( F E V ) v
X 1 0 1 1 0 1 0 o i c e 3
M
2 i n i m u
F E V m o f b y t e s
M i n i m u m l a t c h i n g
X = l
D o n ' t o o o
C f p b a c k .
a
3 r
5 e b
T i t
I P b y t e s r e q u i r e d t o d i s a b l e e s t a b l i s h e d
61220010L2-5C 61220010L2-5, Issue 3 5
IDSL/DDS Trouble Code
The IDSL/DDS system provides a quick diagnosis in the case of a circuit condition where continuity is broken when the IDSL/DDS circuit uses ADTRAN U-
BR1TEs with DDS Loopback capability in the central office or remote terminal. The trouble code type received by a tester determines whether the open condition is occurring on the local loop or at the customer premises. In the event of a 2-wire DSL loss of signal, loss of sync, or open condition caused by an open conductor or disconnected 2-wire loop, the
U-BR1TE transmits a Mux-Out-of-Sync (MOS 9Ah) trouble code into the network as shown in Figure 4.
During a similar out-of-service condition at the customer premises, the IDSL OCU-R transmits
Abnormal Station Code (ASC 9Eh) upstream into the network as shown in Figure 4.
Channel Bank
Open 2-wire Loop
MOS 9Ah
T
E
U
B
R
1
Customer Premises
OCU-R
DSU
Channel Bank
ASC 9Eh
U
B
1
T
E
ASC 9Eh
Customer Premises
OCU-R
DSU
Figure 4. IDSL/DDS Trouble Codes
Loopback LED Operation
IDSL OCU-R loopback status is indicated via the faceplate NTWK LBK and CUST LBK LEDs. An active loopback occurring at the unit being viewed is always indicated via a solid loopback LED. A flashing loopback LED indicates a loopback condition at the far end unit. When a loopback towards the network is initiated, the NTWK LBK LED on the faceplate of the
IDSL OCU-R is illuminated. A loopback generated towards the customer illuminates the CUST LBK LED.
ADTRAN U-BR1TE Bidirectional Loopback
The ADTRAN U-BR1TE will execute a bidirectional loopback when performing DS0 DP loopbacks. Refer to
Figure 5 for an illustration of the bidirectional loopback.
ADTRAN
U-BR1TE
Bidirectional loopback
IDSL OCU-R
Test
Set
Figure 5. ADTRAN U-BR1TE Bidirectional
Loopback
Remote End Initiated LBK Tests
The U-BR1TE supports loopbacks generated from the
IDSL OCU-R which allow testing to be performed without coordination with the CO or test center.
Loopbacks initiated by the IDSL OCU-R front panel
LBK pushbutton (SW2) aid in system turn-up testing or troubleshooting from the remote end.
The U-BR1TE responds to a loopback command initiated at the IDSL OCU-R as follows:
Pressing the LBK pushbutton on the OCU-R once will initiate a loopback at the U-BR1TE towards the customer. See Figure 6. This allows data to be sent from the remote end to test the local loop and the IDSL OCU-R. This loopback is indicated by a flashing CUST LBK LED on the IDSL
OCU-R and a flashing TEST LED (D4) on the
U-BR1TE.
Pressing the OCU-R LBK pushbutton a second time initiates a loopback at the IDSL OCU-R towards the 4-wire DDS (CPE) interface. A solid
CUST LBK on the IDSL OCU-R indicates a loopback at the IDSL OCU-R towards the customer equipment.
See Figure 7.
Pressing the OCU-R LBK pushbutton a third time disables all current loopbacks initiated by the
OCU-R LBK pushbutton.
If errors exist the loopbacks can help determine the source; either the local loop or the IDSL OCU-R.
During a remote end initiated loopback the IDSL/DDS system transmits ASC 9Eh towards the network, indicating an out-of-service condition generated by the remote end, as shown in Figures 6 and 7.
All latching loopbacks, whether initiated by the craft interface, LBK pushbutton, CO, or from a remote test center, can be released by sending 35 DDS loop down
TIP bytes <X0111010> (where X is a “don’t care” bit).
6 61220010L2-5, Issue 3 61220010L2-5C
ASC 9Eh
U-BR1TE
Local Loop
IDSL
OCU-R
Loopback
Pushbutton
Push once for
U-BR1TE Loopback
4-Wire
CPE Interface
Test
Set
Figure 6. IDSL/DDS Remote End Initiated Loopback, Local Loop
ASC 9Eh
U-BR1TE
ASC 9Eh
Local Loop
IDSL
OCU-R
Loopback
Pushbutton
Push twice for IDSL OCU-R
Loopback
4-Wire
CPE Interface
Test
Set
Figure 7. IDSL/DDS Remote End Initiated Loopback, Customer Loop
All existing latching loopbacks can also be disabled by pressing the TEST or LBK pushbutton on the
U-BR1TE or remote unit, respectively.
NOTE
The remote end test feature is only supported when the upstream U-BR1TE is an ADTRAN
D4 or Series 5 U-BR1TE with DDS Loopback capability. Other U-BR1TEs will ignore the loopback command sent by pressing the IDSL
OCU-R LBK button.
5. CONTROL PORT OPERATION
The IDSL OCU-R front panel DB-9 provides an
RS-232 interface for connection to a controlling terminal. The pinout of the DB-9 is illustrated in
Figure 8.
6
7
8
9
1
2
3
4
5
TXD (Transmit Data)
RXD (Receive Data)
SGN (Signal Ground)
Figure 8. RS-232 (DB-9) Cable Side Pin
Assignments
NOTE
When conducting a Terminal Session, always select VT100 mode prior to making the craft connection.
The terminal interface operates at data rates from
1.2 kbps to 19.2 kbps. The asynchronous data format is fixed at 8 data bits, no parity, and 1 stop bit. The supported terminal type is VT100 or compatible.
NOTE
If using a personal computer (PC) with terminal emulation capability, disable all power saving programs. Otherwise, communication between the PC and the IDSL OCU-R unit can be disrupted, resulting in misplaced characters or screen timeouts.
Operation
The T200 IDSL OCU-R is ready for synchronization and operation upon insertion in an active shelf or housing. Terminal sessions provide access to screen menus for provisioning, monitoring, testing, or obtaining performance history. Terminal session screen access is available at any time during operation. The screens shown in this practice identify the main menu screens; subordinate screens are not depicted. Abbreviations used in the screen diagrams are detailed in Table 8.
61220010L2-5C 61220010L2-5, Issue 3 7
8
Table 8. Definition of Screen Abbreviations
Abbreviation and Definition
O
OO
OO
OO
OO
OO
O
O
ES – Errored Seconds: A count of the number of seconds in which at least one code violation was detected on a
OOO digital circuit.
•O IDSL Interface ....Second in which a CRC error occurs.
•O Customer DDS Interface....Second in which a bipolar violation occurs.
OO
O
UAS – Unavailable Seconds: A count of the number of seconds that a circuit or path is not available.
•O IDSL Interface (U-Interface) ....Will accumulate upon the loss of loop synchronization or the occurrence of 7 errored seconds in a period of 20 seconds. UAS will stop accumulating upon the occurrence of 30 consecutive non-errored seconds.
•O Customer DDS Interface.... Will accumulate upon the loss of sealing current (LOOP OPEN), loss of receive signal (LOS), loss of secondary channel framing (LOF), or when the illegal bipolar violation error rate is >1E-3 for at least 10 seconds. UAS will stop accumulating upon the occurrence of 10 consecutive non-severely errored seconds.
O
BPV – Illegal Bipolar Violation
•O Customer DDS Interface.... Two consecutive pulses of the same polarity or violation received that
OO does not alternate in polarity with respect to the prior violation.
O
OO
O
O
O
O
INV – Invalid Frame Relay Frame
•O Any frame with a CRC error.
•O Any frame containing fewer than five octets.
•O Any frame containing more than 8191 octets.
•O Any frame that does not contain an integral number of octets.
•O Any frame containing a frame abort.
O
O
FECN – Forward Explicit Congestion Notification
•O Count of frames in which the Forward Explicit Congestion Notification bit was set.
•O Indicates congestion in the frame relay network but does not isolate cause or location of congestion.
O
O
BECN – Backward Explicit Congestion Notification
•O Count of valid frames in which the Backward Explicit Congestion Notification bit was set.
•O Indicates congestion in the frame relay network but does not isolate cause or location of congestion.
O
OO
O
OO
O
OO
O
OO
O
LMI – Local Management Interface
•O Local Management Interface (LMI) status is a monitor of the heart beat between the frame switch and the CPE.
•O Recognizes FRF (Annex A), ANSI T1.617 Annex D, and ITU T.933A frame relay interfaces.
•O Network and Customer LMI counts should be equal if everything is ok between the frame switch and the CPE.
•O Maintains counts of LMI status messages monitored by the U-Interface, which are sent by the frame relay switch.
•O Maintains counts of LMI status inquiry messages monitored at the DDS Interface which are sent by the frame relay CPE.
O
%UT – Frame Relay Percent Utilization
•O The average percent utilization over the DS0 channel.OO
61220010L2-5, Issue 3 61220010L2-5C
To conduct a terminal session, connect a VT100 or compatible test set to the OCU-R via the front panel
DB-9 connector, then press the space bar three times to initiate the session. The Main Menu will appear, as illustrated in Figure 9.
The Main Menu provides access to detailed performance and configuration information.
A Terminal Modes Menu is available for configuring the craft interface for a manual terminal update or a real-time terminal update. Figure 10 shows the
Terminal Modes Menu.
NOTE
Real-time terminal update is recommended for normal terminal operation unless screens are to be captured or logged to a print file.
CIRCUIT ID:IDSL Test Unit 07/25/00 02:14:40
Adtran IDSL Main Menu
1. Status
2. Loopbacks
3. Performance Monitoring
4. Event Log
5. Set Circuit ID
6. Set Date and Time
7. Adtran Information
8. Terminal Modes
Selection:
Figure 9. Main Menu Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:39:56
TERMINAL MODES MENU
MANUAL UPDATE MODE:
* You can print or log screens
* No text is highlighted
* “Ctrl+R to Update” appears at the top of each screen, reminding
you to press both the ‘Ctrl’ and ‘R’ keys to update the screen
* There is a delay between screen changes & updates
* After 30 min. of no interaction, a new baud rate search is begun
* Ignores input until screen is finished printing
REAL-TIME UPDATE MODE:
* Faster of the two modes
* You cannot print screens to a log file
* Highlighting is enabled
* Recommended for daily operation
Press <SPACEBAR> to toggle update modes
61220010L2-5C
Figure 10. Terminal Modes Menu Screen
61220010L2-5, Issue 3 9
Figure 11 shows the System Status screen.
Figure 12 shows Detailed Status for both network and customer loops.
10
CIRCUIT ID:IDSL Test Unit 07/25/00 02:31:30
System Status Screen
Channel Bank DDS Loop
____________ ____________
| UBR1TE | | OCU-R |
| | | |------>
| | | |
| | | |
| | | |
NETWORK| |<000------------------000>| |CUSTOMER
| | | |
| | MARGIN -----> 20| | ATTEN
| | | | 00dB
| | | |<------
|____________| |____________|
1. Legend
2. Detailed Status
Selection:
Figure 11. System Status Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:33:20
IDSL INTERFACE DATA
UBR1TE OCU-R
(CUST) (NET)
-------- -------
MARGIN: N/A 20
ES 15MIN: 000 000
UAS 15MIN: 000 000
CRC 15MIN: 00000 00000
DSL ALARMS: < NONE >
CUSTOMER DDS RECEIVER DATA
ES 15MIN: 000
UAS 15MIN: 000
ILL BPV 15MIN: 00000
CUSTOMER ALARMS: NONE
LOOP ATTENUATION: 00dB
Figure 12. IDSL Detailed Status Screen
61220010L2-5, Issue 3 61220010L2-5C
Figure 13 shows the Loopbacks display, allowing loopback testing to be initiated or terminated while graphically displaying the testing status of the IDSL system.
Latching Loopback Timeout
When latching loopback timeout is enabled, latching loopbacks will drop out after 120 minutes returning the system to normal operation.
At the top right corner of the screen the time display indicates the current time. At each 15-minute interval, the performance information is transferred to the
15-minute performance data registers accessed from the Performance Monitoring screen. All 15-minute performance data registers are available for the last 25 hours. At each 24-hour interval, the performance data is transferred into the 24-hour performance data register also accessed using this screen. The
Performance Monitoring screens are shown in Figure
14 through Figure 18.
CIRCUIT ID:IDSL Test Unit 07/25/00 02:33:55
LOOPBACKS
Channel Bank DDS Loop
____________ ____________
| UBR1TE | | OCU-R |
| | | |------>
| | | |
| | | |
| | | |
NETWORK| |<------------------------>| |CUSTOMER
| | | |
| | | |
| | | |
| | | |<------
|____________| |____________|
1. Loop UBR1TE Toward Customer—< Not Available >
2. Loop OCU-R Toward Network
3. Loop OCU-R Toward Customer
4. Deactivate Loopback
5. Loopback Timeout: Disabled
Selection:
Figure 13. Loopbacks Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:36:07
Performance Data
----------------------------------------
1. UBR1TE/OCU-R 15 Minute Registers
2. UBR1TE/OCU-R 24 Hour Registers
3. Frame Relay 15 Minute Registers
4. Frame Relay 24 Hour Registers
5. Clear Performance Statistics
Selection:
Figure 14. Performance Monitoring Screen
61220010L2-5C 61220010L2-5, Issue 3 11
Clearing PM and Event Log Registers
Press “5” at the Performance Monitoring screen
(Figure 14) to advance to the Warning screen (not shown). At the Warning screen the user will be prompted to clear registers; “Y” for Yes or “N” for
No.
Interface OOS Screen Event
In those instances when the loop or customer interface is out of service, the performance monitoring screens will show dashes (--- --- ---) for elapsed timeframes indicating that data for those intervals is unavailable.
12
CIRCUIT ID:IDSL Test Unit 07/25/00 02:36:32
UBR1TE/OCU-R 15-Minute Registers
UBR1TE OCU-R OCU-R
IDSL INTERFACE IDSL INTERFACE DDS LOOP
-ES-UAS--CRC- -ES-UAS--CRC- -ES-UAS--BPV-
000 000 00000 000 000 00000 000 000 00000
02:30 000 000 00000 02:30 000 000 00000 000 000 00000
02:15 000 003 00000 02:15 000 003 00000 000 012 00035
02:00 000 000 00000 02:00 000 000 00000 000 000 00000
01:45 000 000 00000 01:45 000 000 00000 000 000 00000
01:30 000 000 00000 01:30 000 000 00000 000 000 00000
01:15 000 000 00000 01:15 000 000 00000 000 000 00000
01:00 000 000 00000 01:00 000 000 00000 000 000 00000
00:45 000 000 00000 00:45 000 000 00000 000 000 00000
00:30 000 000 00000 00:30 000 000 00000 000 000 00000
00:15 000 000 00000 00:15 000 000 00000 000 000 00000
00:00 000 000 00000 00:00 000 000 00000 000 000 00000
23:45 000 000 00000 23:45 000 000 00000 000 000 00000
23:30 000 000 00000 23:30 000 000 00000 000 000 00000
23:15 000 000 00000 23:15 000 000 00000 000 000 00000
23:00 000 000 00000 23:00 000 000 00000 000 000 00000
22:45 000 000 00000 22:45 000 000 00000 000 000 00000
Press “B” to go back 4 hours
Figure 15. U-BR1TE 15-Minute Performance Monitoring Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:36:53
UBR1TE/OCU-R 24-Hour Registers
UBR1TE OCU-R OCU-R
IDSL INTERFACE IDSL INTERFACE DDS LOOP
-ES----UAS---CRC- -ES----UAS---CRC- -ES----UAS---BPV-
00000 00003 00000 00000 00003 00000 00000 00012 00035
07/24 00015 00253 00321 07/24 00010 00253 00159 00014 01073 08442
07/23 ----- ----- ----- 07/23 ----- ----- ----- ----- ----- -----
07/22 ----- ----- ----- 07/22 ----- ----- ----- ----- ----- -----
07/21 ----- ----- ----- 07/21 ----- ----- ----- ----- ----- -----
07/20 ----- ----- ----- 07/20 ----- ----- ----- ----- ----- -----
07/19 ----- ----- ----- 07/19 ----- ----- ----- ----- ----- -----
07/18 ----- ----- ----- 07/18 ----- ----- ----- ----- ----- -----
07/17 ----- ----- ----- 07/17 ----- ----- ----- ----- ----- -----
REVERSED VIDEO = DATA OVERFLOW
* = Contains corrupted 15-minute interval(s)
Figure 16. U-BR1TE 24-Hour Performance Monitoring Screen
61220010L2-5, Issue 3 61220010L2-5C
CIRCUIT ID:IDSL Test Unit 07/25/00 02:37:18
Frame Relay 15-Minute Registers
IDSL INTERFACE DDS LOOP
-INV--FECN--BECN---LMI--%UT -INV--FECN--BECN---LMI--%UT
00000 00000 00000 00000 000 00000 00000 00000 00000 000
02:30 00000 00000 00000 00000 000 02:30 00000 00000 00000 00000 000
02:15 00000 00000 00000 00000 000 02:15 00000 00000 00000 00000 000
02:00 00000 00000 00000 00000 000 02:00 00000 00000 00000 00000 000
01:45 00000 00000 00000 00000 000 01:45 00000 00000 00000 00000 000
01:30 00000 00000 00000 00000 000 01:30 00000 00000 00000 00000 000
01:15 00000 00000 00000 00000 000 01:15 00000 00000 00000 00000 000
01:00 00000 00000 00000 00000 000 01:00 00000 00000 00000 00000 000
00:45 00000 00000 00000 00000 000 00:45 00000 00000 00000 00000 000
00:30 00000 00000 00000 00000 000 00:30 00000 00000 00000 00000 000
00:15 00000 00000 00000 00000 000 00:15 00000 00000 00000 00000 000
00:00 00000 00000 00000 00000 000 00:00 00000 00000 00000 00000 000
23:45 00000 00000 00000 00000 000 23:45 00000 00000 00000 00000 000
23:30 00000 00000 00000 00000 000 23:30 00000 00000 00000 00000 000
23:15 00000 00000 00000 00000 000 23:15 00000 00000 00000 00000 000
23:00 00000 00000 00000 00000 000 23:00 00000 00000 00000 00000 000
22:45 00000 00000 00000 00000 000 22:45 00000 00000 00000 00000 000
Press “B” to go back 4 hours
Figure 17. Frame Relay 15-Minute Performance Monitoring Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:37:38
Frame Relay 24-Hour Registers
IDSL INTERFACE DDS LOOP
-INV--FECN--BECN---LMI--%UT -INV--FECN--BECN---LMI--%UT
00000 00000 00000 00000 000 00000 00000 00000 00000 000
07/24 65535 00000 00000 00000 000 07/24 65535 00000 00000 00000 000
07/23 ----- ----- ----- ----- --- 07/23 ----- ----- ----- ----- ---
07/22 ----- ----- ----- ----- --- 07/22 ----- ----- ----- ----- ---
07/21 ----- ----- ----- ----- --- 07/21 ----- ----- ----- ----- ---
07/20 ----- ----- ----- ----- --- 07/20 ----- ----- ----- ----- ---
07/19 ----- ----- ----- ----- --- 07/19 ----- ----- ----- ----- ---
07/18 ----- ----- ----- ----- --- 07/18 ----- ----- ----- ----- ---
07/17 ----- ----- ----- ----- --- 07/17 ----- ----- ----- ----- ---
REVERSED VIDEO = DATA OVERFLOW
* = Contains corrupted 15-minute interval(s)
Figure 18. Frame Relay 24-Hour Performance Monitoring Screen
61220010L2-5C 61220010L2-5, Issue 3 13
The Event Log, shown in Figure 19, loads and timestamps IDSL circuit performance anomalies and threshold violations. This screen is a very useful aid in troubleshooting a chronic circuit. It monitors DDS sync loss, DDS open loop, IDSL OCU-R margin,
IDSL sync loss, and power-up events. IDSL loop signal-to-noise margin is calculated on a numerical scale from 0-20 with 0 approximately equal to a BER of 1 x 10 -6 and 20 equal to virtually a 0 BER.
The Set Circuit ID screen, Figure 20, sets the circuit identification.
CIRCUIT ID:IDSL Test Unit 07/25/00 02:38:13
EVENT LOG
EVENT FIRST LAST CURRENT COUNT
DDS SYNC LOSS 07/24/00 11:10:04 07/24/00 20:45:03 CLEAR 255
DDS LOOP OPEN 07/24/00 11:10:04 07/24/00 20:45:03 CLEAR 020
OCU-R MARGIN -------- -------- -------- -------- CLEAR ---
DSL SYNC LOSS 07/24/00 11:10:04 07/24/00 20:45:03 CLEAR 021
OCU-R POWER 07/24/00 11:10:01 07/25/00 02:00:00 CLEAR 017
LAST LOG RESET 01/03/98 03:33:20
<ENTER> To CLEAR the Event Log
<ESC> To exit without destroying data
Figure 19. Event Log Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:38:36
Set Circuit ID
14
New ID =
Figure 20. Set Circuit ID Screen
61220010L2-5, Issue 3 61220010L2-5C
The Set Date and Time screen, Figure 21, may be used to set the IDSL OCU-R date and time. Once the date and time are configured the performance registers date and time update accordingly.
The ADTRAN Information screen, Figure 22, displays part number, serial number, CLEI code, and unit revision for the IDSL OCU-R.
CIRCUIT ID:IDSL Test Unit 07/25/00 02:39:01
Set System Date and Time
New Date = / / (MM/DD/YY)
< Press TAB to cycle between time and date >
New Time = : : (HH/MM/SS)
Figure 21. Set Date and Time Screen
CIRCUIT ID:IDSL Test Unit 07/25/00 02:39:32
## ###################################
# ## ## Support Hours: 7am - 7pm CST
# ## ###### ## ###### ## ###### Emergency: 7days x 24hrs
# ## ## ## ## ## ## # ## ## ## Phone: 800.726.8663
########## ## ## ## ###### ###### ## ## Fax: 256.963.6217
# ######## ##### ### #### ## Internet: www.adtran.com
##############################################
901 Explorer Boulevard, Huntsville, AL 35806-2807
-----------Manufacturing Information-----------
Unit PART # SERIAL NUM CLEI REV
----- ---------- ---------- ---------- ---
OCU-R 1220010L2 123456789 NCT1TX2BAA 1
61220010L2-5C
Figure 22. ADTRAN Information Screen
61220010L2-5, Issue 3 15
6. 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. The IDSL
OCU-R network element complies with ANSI
T1.107-1995, “Digital Hierarchy Format
Specifications Annex G” which allows remote provisioning, querying, and performance monitoring via inband control of network elements.
7. MAINTENANCE
The T200 IDSL OCU-R does not require routine maintenance for normal operation.
8. DEPLOYMENT GUIDELINES
The IDSL OCU-R allows a standard U-interface to be used to provide DDS over a single pair. Listed below are the loop design guidelines for deployment of DDS over IDSL.
• All loops must be nonloaded.
• Actual Measured Loss (AML) should not exceed
40 dB at 40 kHz (135
Ω
termination), the Nyquist frequency of a U-interface.
• Total bridged tap length should not exceed 2 kft.
NOTE
The REACT 2001 GUI software Release 1.900
supports ANSI T1.107-1995.
Remote access is accomplished using a defined set of inband DS0 byte sequences similar to the latching loopback sequence. Commands issued through the test system are recognized by the individual channel unit, which responds with the appropriate byte sequences. These inband commands may be used to verify options via dialogs with REACT 2001 and TPI
108/109 test sets. Unit CLEI, serial number, provisioning, and performance information can be retrieved remotely using the Digital System 6 protocol.
Provisioning and Status
All configuration options can be remotely viewed or provisioned. The front panel AP LED indicator
Flashes during control link establishment and remains
ON after the IDSL OCU-R has been remotely provisioned.
If the IDSL OCU-R has been remotely provisioned, the operator can alternate between remote configuration and manual switch settings by pressing the momentary LBK button located on the front panel for 5 seconds. If the IDSL OCU-R is removed from the system, the unit retains previous provisioning information in nonvolatile RAM.
The AP LED remains ON when the IDSL OCU-R is operating based on Remote Provisioning, and is OFF when operating on manual switches. See Table 5 for
LED indication.
NOTE
If any of the above Deployment Guideline criteria are not met, design should be considered using
Total Reach DDS, with the exception of the first bullet.
9. 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
60000087-10).
Contact Customer and Product Service (CAPS) prior to returning equipment to ADTRAN.
16 61220010L2-5, Issue 3 61220010L2-5C
For service, CAPS requests, or further information, contact one of the following numbers:
ADTRAN Sales
Pricing/Availability
(800) 827-0807
ADTRAN Technical Support
Pre-sales Applications/Post-sales Technical Assistance
(800) 726-8663
Standard hours: Monday-Friday, 7 a.m. - 7 p.m. CST
Emergency hours: 7 days/week, 24 hours/day
ADTRAN Repair/CAPS
Return for Repair/Upgrade
(256) 963-8722
Repair and Return Address
ADTRAN, Inc.
CAPS
901 Explorer Boulevard
Huntsville, Alabama 35806-2807
61220010L2-5C 61220010L2-5, Issue 3 17
18 61220010L2-5, Issue 3 61220010L2-5C
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