NEC FD-2240A Instruction Manual

SOUTHWESTERN
BELL TELEPHONE PRACTICE
SWBT
Standard
SECTION
NECA
365-407-811SW
Issue
A,
July
1989
1.
GENERAL
1.01
1.02
1.03
1.04
1.05
FD-2240A
6.3MB
OPTICAL
LINE
TERMINATING MULTIPLEXER
OPERATION
This
section
is
a
cover
sheet
for
the
NEC
America,
Inc.,
FD-2240A
6.3MB
Optical
Line
Terminating
Multiplexer
Operation.
This
section
is
reproduced
with
permission
of
NEC
America,
Inc.,
and
is
equivalent
to
NEC
practice
NECA
365-407-301,
Issue
3.
Whenever
this
section
is
reissued
the
reason(s)
for
reissue
will
be
listed
in
this
paragraph.
This
section
provides
operating
information
for
the
FD-2240A
6.3MB
Optical
Line
Terminating
0-LTM).
If
corrections
are
required
in
the
attached
document,
use
Form-3973
as
described
in
Section
000-010-015.
If
equipment
design
and/or
manufacturing
problems
should
occur,
refer
to
Section
SW
010-522-906
for
procedures
on
filing
an
Engineering
complaint.
2.
ORDERING
PROCEDURE
2.01
To
order
additional
copies
of
this
practice,
use
NECA
365-407-811SW
as
the
section
number.
3.
REPAIR/RETURN
3.01
Malfunctioning
units
may
be
returned
to
NEC
America,
Inc.,
for
repair.
Attachment:
NEC
America,
Inc.
FD-2240A
6.3MB
Optical
Line
Terminating
Multiplexer
Operation
PROPRIETARY
Not
for
use
or
disclosure
outside
Southwestern
Bell
Telephone
Company
except
under
written
agreement.
Page
1
1
Page

NEC
PRACTICE
NEC
NECA
365-407-301
Issue
3,
December
1986
FD-2240A
6.3MB
OPTICAL
LINE
TERMINATING
MULTIPLEXER
OPERATION
NEC
America,
Inc.
Transmission
Division
14040
Park
Center
Road
Herndon,
Virginia
22071
Phone
No:
(703)
834-4000
Fax No:
(703)
481
~6904
Telex
No:
899498
TWX
No:
710-831-0639
Easylink
No:
62939917

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NEC
PRACTICE
NECA
365-407-301
1.
2.
3.
4.
Issue
3,
December 1986
6.3MB
OPTICAL
LINE
TERMINATING
MULTIPLEXER
OPERATION
CONTENTS
INTRODUCTION
GENERAL
CONTROLS
AND
INDICATORS
A.
B.
c.
D.
E.
F.
G.
H.
I.
ALM
Unit
ALM
Display
Panel
CTRL
Unit
DMUX
Unit
DS2
INF
Unit
MUX
Unit
PWR
Unit
SV
Unit
6M
OPT
INF
Unit
OPERATION
A. Ma.nual
Switching
........••••..•....................................
B.
Automatic
Switching
••••••••••••••••••••••••••••••••••••••••••.••.•.
c.
DSl
Level
Remote
Loopback
••••••••••••••••••••••••••
D.
High Speed Remote Loopback
E.
Alarm
Cutoff
.......................................................
F.
Alarm
Test
G.
Lock
Reset
H..
Character
Displays
•••••••••••••••••••••••••••••••••••••••••••••.••.
I.
Scroll
Switch
......................................................
Copyright@
1986
by
NEC
America,
Inc.
All
rights
reserved.
This
document
is
not
an
offer
to
sell.
The
information
contained
in
this
document
is
subject
to
change
without
notice.
Page
2
3
3
5
7
12
13
14
15
16
18
19
21
21
21
22
23
26
26
27
27
28
Page
1

NECA 365-407-301
CHAJ.'JGE-7
s.
STARTtNG EQUIPMENT
6.
STOPPING EQUIPMENT
Figure
CONTENTS (Cont'd)
. ................................................... .
.
.................................................... .
ILLUSTRATIONS
Title
3-1
t3-2
3-3
FD-2240A Unit Locations
.................... •- .........................
ALM Unit (X0314A/Al/AA/B/AB) Controls and Indicators •....••....•.....
Alarm Display Panel Controls and Indicators ••••.•..•.•..•............
Page
29
30
Page
4
7
r~=:
CTRL Unit (X0316A/Al/B, X7387A/B) Controls and Indicators ........... .
12.
DMUX Unit (X0301A/Al/A2/B/B2) Indicators .•...........................
DS2 INF Unit (X0308A/Al/B) Indicators ............................... .
13
14
I
13-6
~ 3-7
MUX Unit (X0300A/B) Controls and Indicators ......................... . l
5.
3-7A ~fJX Unit (X0300A2/B2) Controls and Indicators ..................... lSA/B
r
3-8
3-9
~ 3-10
4-1
4-2
PWR Unit (X0319A/B, Xl914A) Controls and Indicators ................. .
SV Unit (X0315A) Indicators
..........................................
6M OPT INF (X0306E/F/Fl, X0307B/C/Cl) Unit Controls and Indicators ...
DSl Level Remote Loopback Configuration •.............................
High Speed Remote Loop back Configuration ............................ .
TABLES
16.
18
l9t
'1/,
-~
:s
Table Title Page
3-1 Alarm Display Panel Local Display LED
Indications and Character Display •••••e••••••························ 8
3-2 Alarm Display Panel Remote Display LED
Indication and Character Display •.••••.....•.....•..••...•....•...... 10
3-3 Alarm Display Panel Character Displays .•••••.•••••••••.....•..•.•.... 11
1. INTRODUCTION
1.01 This practice provides operating information for the FD-2240A 6.3MB
Optical Line Terminating Multiplexer. The information includes des-
criptions of control and indicator functions as well as instructions for
starting, operating, and stopping the equipment.
Page 2

ISS
3,
NECA
365-407-301
1.
02
Issue
3
of
this
practice
supersedes
Issue
2
of
NECA
365=407=300. The
prac~ice
provides
expanded
coverage
and
corrects
errors
and
omissions
in
the
superseded
document.
1.03
Whenever
this
practice
is
reissued,
the
reason
for
reissue
will
be
listed
in
this
paragraph.
2.
GENERAL
2.01
Once
the
FD-2240A
is
in
operation,
no
attention
is
required.
If
a
unit
fails,
the
equipment
will
automatically
issue
the
appropriate
alarm
indications.
If
the
equipment
has
a
redundant
configuration,
the
FD-2240A
automatic
switching
system
will
automatically
place
the
redundant
unit(s)
online.
If
the
equipment
is
nonredundant,
automatic
switching
function
is
not
available.
2.02
After
automatic
switching
occurs,
the
faulty
unit
can
be
replaced
without
interrupting
service.
It
is
not
necessary
to
repeat
the
starting
procedure
after
the
unit
is
replaced.
The
equipment
continues
to
operate
in
online
mode
with
the
newly
installed
unit
acting
as
the
redundant
standby.
2.03
Manual
control
of
the
FD-2240A
is
usually
necessary
only
during
equipment
maintenance.
Refer
to
NECA
365-407-500
for
detailed
maintenance
instruc-
tions
and
procedures.
3.
CONTROLS
AND
INDICATORS
3.01
Refer
to
Figure
3-i
for
unit
locations.
Figures
3-2
through
3-10
show
the
controls
and
indicators
utilized
during
operation
and
testing
of
the
FD-2240A
and
describes
the
function
of
each.
All
controls
and
indicators
are
located
on
the
front
of
the
plug-in
units.
Page 3

1-d
Ill
(JQ
co
~
l_
6 M
0
6 M D
c 6
M u M M u M T M
X u
)(
u
A
0 X 0 X
L
0
p p p
T T T
I
I
I
N N N
F F F
i
•
M 0
u
M
X u
X
6
M
0
p
T
I
N
F
Display
Panel
-
rMISC,
,sPARE,
OCl
OC2
ALCP(
rourn
~
rrn
11
.OAl .OAl.OA1
.OA
t-;
M D c
u M T
X u
I~
X L
~
,v
_,
NOTE:
1.
052
INF
Unit
may
be1
mounted
in
place
of
6M
OPT
INF.
2.
Only
one
unit
can
be
mounted
in
case
of
AC
IPWR
unit.
Figutre 3-1 FD
1
·2240A
Unit
locations
~~
tr:l
n
~
....
l;.J
C:f\
1.11
II
~::-.
C::)
~-..~
II
l;.J
<::::>
~~

A. ALM Unit
ON
MAINT
OFF
CPU
UNUSED
MAINT
SOURCE
I"' -
~
l
1
TST9
l
uu~
ISS 3, NECA 365-407-301
CPU, red LEO:
Indicates ALM unit CPU failure when lit.
UNUSED amber LED:
Indicates TST switch is ON when lit.
iviAii'iT, red LED:
Indicates MAINT switch is ON when lit.
SOURCE, green LEO:
Indicates presence of DC primary power when lit.
MAl NT, two position toggle switch:
Enables manual control switching (manual switch
and remote ioopback switchi.
TST, momentary-action pushbutton switch:
lights all equipment LED (except ALM unit
SOURCE LED and PWR unit PWR ON LED),
when depressed.
N 50052
Figure 3-2 ALM Unit (OAOO) Controls and Indicators (Sheet 1 of 2)
Page 5

NECA
365-407-301
CHA~GE-7
Ot'J
MAINT
OFF
CPU
MAINT
SOURCE
RESET
CPU,
red
LED:
1ndicates
ALM
unit
CPU
failure
when
lit.
MAINT,
red
LED:
Indicates
MAINT
switch
is
ON
when
lit.
SOURCE,
green
LED:
Indicates presence
of
DC
primary
power
when
lit.
MAINT,
two
position
toggle
switch:
Enables
manual
control
switching
{manual
sw•tch
and
remote
loopback
switch
I
TST,
momentary-action
pushbutton
switch:
Lights
all
equipment
LED
(except
ALM
unit
SOURCE
LED
and
PVvR
unit
PWR
ON
LED),
when
depressed.
RESET,
momentary-action
pushbutton
switch:
Resets CPU
on
ALM
unit
when
depressed.
t
Figure 3-2
ALM
Unit
(0A01,
AAOO,
0800,
ABOO)
Controls
and
Indicators (Sheet 2
of
2)
t
Page
6

ISS
3,
NECA
365-407-301
B.
ALM
Display
Panel
LOCAL
M!N
LED
LOCAL DISP
LOCAL
MAJ
LEO \ I
/COLEO
\ I I
\ \
LOCAL OISP LED
~I'---~-
l'H·~n
c::vv
\RE~OTE
~~~L~~
qeMOTE
OISP
LED
----------------'
REMOTE OISP
SCRL
SW
ACO,
amber
LEO:
Indicates ACO
is
activated
when
lit.
ACO,
momentary-action
pushbutton
switch:
CO
AUD
or
AUD/VIS
alarm indication
is
released
when
depressed.
SCRL,
momentary-action
pushbutton
switch:
Scrolls displayed indications
on
LOCAL OISP and REMOTE DISP
when
depressed.
LOCAL MAJ,
red
LED:
Indicates major alarm occurrence
in
local
F0-2240A
when
lit.
LOCAL MIN,
amber
LEO:
Indicates
minor
alarm occurrence in local
F0-2240A
when
lit.
RErv10TE
MAJ,
red
LED:
Indicates major alarm
occurrence
in
remote
FD-2240A
when
lit.
REMOTE MIN,
amber
LEO:
lndieatei
minor
alarm occurrence
in
remote
FD-2240A
when
lit.
LOCAL OISP, eight-character display:
Indicates alarms
and
status
of local FD-2240A. Normally indicates
the
most
significant alarm or
status informationo Refer
to
Tables
3-1
and 3-3.
REMOTE
D!SP, eight-character display:
Indicates alarms
and
status
of
remote
FD-2240A. Refer
to
Tables 3-2 and 3-3.
LOCAL DISP, red LEO:
Flicken
when
MAJ
ALM
item
is
displayed
on
LOCAL
OISP.
REMOTE OISP, red LEO:
Flickers
when
MAJ ALM
item
is
displayed
on
REMOTE DISP.
Figure 3-3 Alarm Display Panel Controls and Indicators
Page 7

NECA 365-407-301
T ()f'AT nTC::P T l<'n
...,....,'-'6.~ ,., ..... ...,. '-J .....,
Flickers
Flickers
Flickers
I
Flickers
I
1:'1.: ~1·~-~
I:~~\,;l\.C.L~
I
Flickers
r'lickers
Flickers
Flickers
Flickers
Flickers
Flickers
Out
---
Out
Out
Out
Page 8
Table 3-l
Alarm Display Panel Local Display LED
Indication and Character Display
...,.....,"""' .. A...A...i ,., ..... ...,4
'-'A..&. .. ~.&.~.A.'-'..a...._,.&.'-U
PWR MAJ
FUSE
(a)
PKG
(a)
MUX
1-\nn'T' ATT'T'
\d.JVCJ.
VUJ.
(a) OPT IN
{aJDSL
OUT
(a)
DS2 IN
(a)
DMUX
(a) CH
OUT
(a)MAJ
ERR
(b)CTL
CPU
PWR MIN
(::a) PKr.
,_,
........ _
(a)
MUX
(a)OPT OUT
(a) OPT IN
l<'A TT TT~l<'
"- ........... .._.v.a.-. .....
Both
PWR
(DC)
units
or PWR
(AC)
unit fail
MISC DC2 fuse
for protection
switching relays blown
One or more units of online
system incorrectly equipped
Online
MUX unit multiplexer
circuit
failure
A-1 ,: __
t:.u nn'T' Tl.Tt:'
·---~~
--~-~--1
vu~~ut:
Ul•l VC J.
.l.l'ti: Ull~L. upL~\,;4~
output loss
Online 6M OPT INF unit optical
input loss
Unli.ne
USL
INF
unit output loss
Online DS2
INF
unit
input
loss
Online DMUX
unit demultiplexer
circuit
failure
DSl CH output
failure on online
DMUX unit
Online
6M
OPT
INF unit
m.::~;nr
--.,J--
error
CTRL
unit CPU failure
One PWR (DC) unit fails
On~ nr mnr~ nnit-c::~ nr nrrlin~
-··-
--
----
-··~-- --
___ ..._.., .... _
system
incorrectly
equipped
Offline
MUX unit
multiplexer
circuit failure
Offline
6M OPT INF unit optical
nnt'nnt- lnc::~c::~
_.__1"" __
_ .....,.....,"-"
Offline 6M OPT INF unit optical
input loss

ISS
3,
NECA
365-407-301
Table
3-1
Alarm
Display
Panel
Local
Display
LED
Indication
and
Character
LOCAL
DISP
LED
LOCAL
DISP
CHARACTERS
Out (a)DS2
OUT
Out
(a)
DS2
IN
Out
,
-'
DMUX
\.a}
Out
(a)
CH
OUT
Out (a)MAJ
ERR
Out
fa)OFFLINE
Out (a)LD
BIAS
Out
sv
{'\,,
..
(h
\MnN
CHK
VU'-
\.'-'J
.....
""
.....
Out
(a)
A DSl
Out
(a)
DSl'S
Out
(a)AIS
RCV
Out
(a)RMT
ALM
(a)
Indicates
system,
1,
2,
3
or
4.
(b)
Indicates
system
1
or
3.
FAILURE
Offline
DS2
INF
unit
output
loss
Offline
DS2
INF
unit
input
loss
rt..L:~~--
T'\1.1TTV
---~
...
demultiplexer
UI:I:~ce
Ul•lUA
Uil.l.L
circuit
failure
DSl
CH
output
failure
on
offline
DMUX
unit
Offline
6M
OPT
INF
unit
major
error
Offline
MUX
unit
or
offline
DMUX
unit
failure
LD
bias
current
alarm
SV
unit
failure
CTRL
unit
self-monitoring
circuit
failure
One
DSl
CH
input
loss
on
MUX
unit
More
than
one
DSl
CH
input
lnC!C!
nn
MTTY
nn;f"
~eception
of
AIS
Major
alarm
occurring
in
remote
system
Page
9

NECA
365-407-301
LOCAL
DTSP
LED
--~-
-~-
-----
Flickers
Flickers
Flickers
Flickers
Flickers
Flickers
Out
uut
Out
Out
Out
Out
Out
Out
Out
Out
Table
3-2
Alarm
Display
Panel
Remote
Display
LED
Indication
and
Character
Display
LOCAL
DISP
CHARACTERS
-----
----
----
--------
FAILURE
-
---
-
(b)
CTRL CTRL
unit
or
MISC
DC2
fuse
failure
(a)
MUX
Online
MUX
unit
multiplexer
circuit
failure
(
.::~
)OP'T'
OUT
Online
6M
OPT
INF
unit
on
t'
i
r-
;:11
,_/
---
-r-----
output
loss
(a)
OPT
IN
Online
6M
OPT
INF
unit
optical
input
loss
(a)
DMUX
Online
DMUX
unit
demultiplexer
cirucit
or
DSl
CH
output
failure
(a)MAJ
ERR
Online
6M
OPT
INF
unit
major
error
PWR
MIN
One
PWR
unit
failure
ta)
MUX
urr1.1.ne
MUA
un1.t ra1.1.ure
(a)OPT
OUT
Offline
6M
OPT
INF
unit
optical
output
loss
(a)
OPT
IN
Offline
6M
OPT
INF
unit
dptical
Input
loss
(a)
DMUX
Offline
DMUX
unit
or
DSl
CH
output
failure
(a)MAJ
ERR
Office
6M
OPT
INF
unit
major
error
(a)
OFFLINE
Offline
MUX
unit
or
offline
DMUX
unit
failure
(a)ALM
CCT
ALM
unit
circuit
failure
(a)
SV
sv
data
reception
failure
on
local
sv
unit
(a)
CH
IN
DSl
CH
input
loss
on
MUX
Unit
(a)
Indicates
system
1,
2,
3,
or
4.
(b)
Indicates
system
1
or
3.
Page
10

ISS
3,
NECA
365~407~301
Table
3-3
Alarm
Display
Panel
Character
Displays
CHARACTERS
LOCAL
DISP I
CONDITION
REMOTE
DISP
I
*SCROLL*
**END***
Scroii
mode
ends
after
all
failures
are
displayed
**NEC***
FD-2400A
Indicates
when
TST
SW
is
depressed
Page
11

NECA
365-407-301
CHAt-lGE-7
C.
CTRL
Unit
SEL
c::s>
AUTO
,_2
Page
12
LOCK
RST,
momentary
toggle
swttch:
Locked
condition
of
SEL
switch
1s
released
when
ON.
NOTE:
MAINT
switch
must
be
set
to
ON
before
operating
this
switch.
SE
L,
three
position
toggle
switch:
Middle
position
Selects
automatiC
redundant
Position
1
Position
2
switching
.
Manually
sets
system
1
or
3
online.
;
Manually
sets
system
2
or
4
online.
NOTE:
MAINT
switch
must
be
set
to
ON
before
operat1ng
this
switch.
FAIL,
red
LED:
Indicates
unit
failure
when
lit.
LOCK,
red
LEO:
Indicates
that
redundant
sw1tch
is
locked
when
Itt
(If
high
speed is
optical,
the
sw1tch
•s
not
locked)
CH1
to
CH4,
red
LED:
Indicates
bit
comparison
failure
in
monitor:ng
channel
when
lit.
SELF,
red
LEO:
Indicates
failure
in
seff.monitonng
c1rcu1t
when
Itt.
OFF
LINE,
red
LEO:
Indicates
bit
error
rate
fatlure
dunng
offltne
monitoring
when
lit.
NOTE:
In
nonredundant
configuratton,
this
untt
tS
not
used.
CTR l
Unit
(X0315A/A
1/8,
X7387
A/B)
Controls and Indicators t

D. DMUX Unit
ON LINE
FA!L
RMT ALM
LPB
DET CH1
LPB
DET CH2
LPB DET CH3
LPB DET CH4
1
~I
t1t11
~I
~
~
-
LJ
u
ON LINE, green LED:
ISS 3, NECA 365-407-301
CH&'iGE-7
Indicates un1t IS online when lit.
FAIL, red LEO:
Indicates unit failure when lit.
RMT, ALM, amber LED:
Indicates that remote alarm is detected when lit.
LPB DET CH1 thru 4, red LED:
indicates that low speed ioopback command from
remote station CH is detected when lit.
t Figure 3-5 DMUX Unit (X0301A/A1/A2/B/B2) Indicators t
Page 13

NECA 365-407-301
CHANGE-7
E. DS2 I~F Unit
Page 14
ON LINE
~I
FAiL
~I
A!S
II
1
rF1l
-
lidJ
u
ON LINE, Green LED:
Indicates that the unit is on line when lit.
FALL, red LED:
Indicates unit failure when lit.
AIS, amber LED:
Indicates that alarm mdtcatton signal IAISl
of DS2 1evel is received when lit.
t Figure 3-6 052 INF Unit (X0308A/A1/8) Indicators t

F. MUX Unit
ALB
O~F ON I
a:::J CH 1
c::::::J CH 2
I IT5 II g~ ~
ON LINE
FAIL
ALB SET
~
-I
LJ
u
ALB, piano switch:
ISS 3, NECA 365-407-301
CHANGE-2
ON: Sends loopback command to remote
station when set to ON.
OFF: Normal status
NOTE: 1. Before setting ALB switch to ON, ALM unit
MAINT SW must be ON.
2. CH NOs corresponding to RLB SWs are CH1
through CH4 from the top.
3. Nos. 1 through 4 shown at right side of ALB
SWs do not indicate CH NOs.
ON LINE, green LED:
Indicates unit is online when lit.
FAIL, red LED:
Indicates unit failure when lit.
ALB SET, red LEO:
Indicates that ALB switch is ON when lit.
t Figure 3-7 MUX Unit (X0300A/B) Controls and Indicators t
Page 15

F. MUX Unit
ON~OFF I
CH 1
~ II g~ ~
RLB
ON LINE
FAIL
RLB SET
~ CH4
~
R LB. piano switch:
ISS 3, NECA 365-407-301
CHANGE-2
ON: Sends loopback command to remote
station when set to ON.
OFF: Normal status
NOTE: 1. Before setting R LB switch to ON, A LM unit
MAINT SW must be ON.
2. CH NOs corresponding to R LB SWs are CH1
through CH4 from the top.
ON LiNE, green LED:
Indicates unit is online when lit.
FAIL, red LED:
Indicates unit faih.Jie when lit.
R LB SET, red LED:
Indicates that ALB switch is ON when lit.
t Figure 3-7A MUX Unit (X0300A2/82) Controls and Indicators t
Page 15A/B

NECA 365-407-301
CH&~GE-7
G. P\.JR Unit
...--~n ~...........-n
31
PWR
ON
0
OFF
~I
fll
WI
~----u------~1 1
u
VOLTAGE
MONITOR
JACK
PWR ON, green LED;
Indicates normal power supply when lit.
ON/OFF, two position switch (NFB):
Po"AJer ts supplied when ON.
Voltage Monitor Jack (+50/-90):
To check +5V /-9V output voltage.
t Figure 3-8 PWR Unit (X0319A/B) for DC Control and Indicator (Sheet 1 of 2) t
Page 16

n
PWR
ON
0
ON
I I
11~1
II ( I I )I
II ifl
OFF
u PWR
ON, green LED:
indicates normal power supply when lit.
ON/OFF. circuit breaker (NFBI:
Power is supplied when ON.
Voltage Monitor Jack:
To check +5V/-9V/-48V output voltage.
'
ISS 3, ~ECA 365-407-301
CH.-\.'\GE- 7
+5V
+ -
~
Ioooo
+ - + -
-9V
-48V
Ill
~
.~,
0
• Figure 3-8 PWR Unit (X1914A) for AC Control and Indicator (Sheet 2 of 2) t
Page l 7