Bell 5100AM User manual

BELt
SYSTEM PRACTICES
AT
f'
TCo Standard
Transaction II 3-11
SECTION 502-323-401
Issue 1, August 1976
51OOAM
TRANSACTIONTELEPHONESETBASE
WITH 220- OR 2220-TYPE HAND TELEPHONESET
1.
1
GENERAL
1.1This sectioncontains identification,installation,
connection, and maintenance information for
the Transaction II telephone set which consists of
a 5 00AM base, faceplate and a 220- or 2220-type
ha d telephone set. For detailed information on
co ponents, refer to CD- and SD-69926-01.
1.0~ Whenever this section is reissued, the reason
for reissue will be listed in this paragraph.
1.0~ For use behind a key system,
A
and Al
leads are provided by the black (BK) and
yeljow
(Y)
leads, respectively, in the mounting cord.
If
~ommon audible ringing is to be provided, a
sep~rate ringer is required.
I.Oil
For additional information on the Transaction
telephone system, refer to TechnicalReference,
PU; 41804, titled "Switched Network Transaction
Tel phone System Interfacing With Audio Response
Un ts."
!
2. IDENTIFICATION
2.0~
The 5100AMTransaction telephone set base,
' equipped with a 220- or 2220-type hand
tel~phone set (Fig. 1) provides the standard features
off single line rotary or TOUCH-TONE®telephone
set,
Note:
If
the customer elects to have the
dial of the hand telephone set made inoperable
(as covered by 3.33) then it can only provide
incoming service and card dialer service.
It ~an also automatically dial and electronically
trapsmit information read from a magnetic stripe
on la credit card, or keyed on a 15-button manual
entjry pad (Fig. 1), to a data center for immediate
cr~it authorization, check verification, or inventory
co trol. In addition, it is possible for a transaction
to e accomplished in a hands-free mode.
2.02
Design Features:
• Modular type
• Magneticstripe
card read,er (ABA Track 2)
• Automatic dialer
• Click-disc type 15-button manual entry pad
• Operating instruction lamps (light emitting
diodes [LED])
• Hands-free operation
• Electronic switchhook and call progress
sounder
• Volume control for call progress sounder
• Green/yellow approval or referral lamps
(LED)
• Data receiver and an 8-digit alpha/numeric
display.
2.03
Optional Features:
• TT/DP (TOUCH-TONE/DIALPULSE) option
allows use of button pad and card reader
into a rotary or a TOUCH-TONE dial office
• 15-button manual entry pad may be locked
inoperable for outgoing calls
• TOUCH-TONE signal output level of set
from button pad or card operation may be
changed to compensate for loop loss
• An auxiliary manual entry pad (5000A-50
dial) may be connected to allow use of a
Personal Identification Number (PIN).
I
NOTICE
Not for use or disclosure outside the
Bell System except under written agreement
Printed in U.S.A. Page 1

3-11 Transaction II
SECTION 502-323-401
220-0R 2220 -
TYPE HAND
TELEPHONE SET
ON B OFF
SUTTONS
MANUAL
ENTRY PAD
CARD READER 8 - DIGI T
DIS PLAY CA '<D
l 'lj
STORAG f SLl' T
POWER CORD
D48U 29
MOUNT I NG CORD
VOLUME CONTR OL
FOR CALL PROGRES S
SOUNDER
Fig. l- 5100AM Transaction II Telephone Set Base Equipped With 220- or 2220-Type Hand Telephone Set
2.04
The 5100AM Transaction II telephone set
base is available in Ivory (-50) only. These
bases will be shipped with a disposable protective
faceplate, so it is necessary to order the proper
faceplate separately (Table A).
'2.05
Ordering Guide:
(a) The 5100AM Transaction II telephone set
base consists of all the necessary circuitry
including power unit and card reader and should
be ordered as:
• Base, Telephone Set, 5100AM (includes the
following):
Page 2
Cord, Handset, H-IDU-50
Cord, Mounting, D4BU-29 (7 foot provided,
14- or 25-foot available)
Adapter. 227A (for handset cord)
840996003 Test Card B (additional cards
may be ordered)
Subscribe r Instruction Booklet (SIB-2482C)
(b) One of the following is also required and
must be ordered separately:
• Set, Telephone, Hand. 220A-50 (Rotan· dial,
• Set, Telephone, Hand, 2220B-50(TOUCH-To:-;i,:
dial)
(c) If the auxiliary manual entry pad is to be
used, it will b~ necessary to order the
D-180687Kit of Parts (which includes the 5000A-50
dial) and also an appropriate faceplate (Table
A).

CONNECT RED (R) GREEN (G) YELLOW (Y), AND
BLACK (BK) CONDUCTORS OF STATION WIRE
ALONG WITH (R), (G), (Y), AND (BK) JACK
LEADS OF 625C TO TERMINALS R,G,Y, AND
B, RESPECTIVELY, OF 42A CONNECTING BLOCK
2. PLACE 625C ONTO 42A AND SECURE
3.
PLUG ONE END OF D4BU CORD INTO JACK OF
625C AND OTHER END INTO JACK IN BASE
OF TELEPHONE SET
Transaction II 3-11
ISS 1, SECTION 502-323-401
~
STATION
WIRE
42A
CONNECTING
BLOCK
625C
CONNECTING
BLOCK
( SEE NOTE)
(SEE NOTE)
MOUNTING
CORD
PLUG INTO BASE
OF TELEPHONE SET
NOTE:
A 625A CONNECTING BLOCK
CONSISTS OF A 625C AND
A 42A CONNECTING BLOCK
Fig. 2-lnstallation of 625A Connecting Block
3. INSTALLATION
3.01
Terminate the local loop into a connecting
block suitable for the O4BU-29 mounting
cord, but do not connect the mounting cord at this
time. The use of a 625-type connecting block (Fig.
2) is recommended. For information on other
modular ronnecting blocks or adapters. refer lo
Section 503-100-100.
Warning: Any magnetic stripe card
may
have its encoding destroyed if
the card is carried or stored near a
magnet or magnetized object.
Page 3

3-11 Transaction II
SECTION
502-323-401
TABLE A
TRANSACTION II
FACEPLATE ORDERING GUIDE
FACEPLATE
TEL SET CODE LETTERING INTENDED USE
NUMBER
138Cl-* Blank Without
5100AM 138C5-* Standard Auxiliary Manual
Tel Set Instructions Entry Pad
Base 138Dl-* Blank With
138D6-* Standard Auxiliary Manual
Instructions Entry Pad
* Add appropriate color suffix from Table B
TABLE B
COLOR ORDERING GUIDE (SEE NOTE)
HAND
TEL FACEPLATES
SET
SUFFIX COLOR SUFFIX COLOR
-100 Avocado
-108 Teak
-109 Walnut
-50 Ivory -111 Gold
-112 Orange
-113 Brown
-114 Red
-115 Blue
-118 Black
Note: The 5100AM telephone set base is avail-
able in Ivory only and the hand telephone set
should also be Ivory. The faceplate must be
ordered separately.
3.02
Connect the TRIMLINE® handset to the
5100AMtelephone set base using the handset
cord and adapter. (A 616P jack is provided on
the front of the base.)
3.03
Insure that there is an available 110-volt,
3-wire AC receptacle, not controlled by a
switch, within reach of the 6-foot power cord.
Page 4
A 3-wire outlet is required for safety
and proper operation of the set. Third
conductor must be grounded. If third
wire is not prol•ided and grounded,
the resistance of the set to
electrostatic damage is lowered
and the probability of failure is
greatly increas,ed.
3.04
To intall 138-type faceplate, proceed as
follows:
(1) Remove disposable faceplate by lifting at
the midpoints of the left and right edges.
When faceplate is bowed slightly, the locking
tabs at top and bottom ,,,ill
release.
(2) Install new faceplate by inserting bottom
tab into housing and slightly bowing the
faceplate enough to insert upper tabs into slots
of housing.
Note: If auxiliary manual entry pad is to
be installed, do not install faceplate at this
time.
TRANSMISSIONMEASUREMENTS(INSERTIONLOSS)
3.05
The signal output level of the TOUCH-TONE
frequencies transmitted by the Transaction
II set must be adjusted to match the loop being
used. Make a loop insertion loss measurement
using a 23D Transmission Measuring Set, or the
equivalent, and a 900 ohm termination. Dial the
milliwatt supply (1000 Hz) of the serving central
office, read and record the loss of the loop.

.06 It is recommended that at this time the set
should be opened up (3.07) and all option
lugs on main printed wiring board (PWB) and
ontrol board checked to insure that they are in
heir "when shipped" positions as shown by Tables
and D or Fig. 4 and 5. Check wiring terminations
nd if any loose connections are found, reterminate
er Fig. 11.
.07 To open set in order to access option plugs
and/or terminals proceed as follows:
(1) Disconnect power plug from AC outlet, if
connected.
(2) Invert set and loosen the two captive screws
holding the upper housing and chassis (Fig.
3).
(3) Lay the upper housing and chassis to the
right, as shown by Fig. 6,without disconnecting
any cables.
(4) To reassemble, reverse procedure.
.08 Set the TOUCH-TONE signal output level
for the actual measured loss of the loop
3.05) as follows:
(1) Place the options on their proper positions.
See Fig. 4 and Table C.
(2) If the loss of the loop is 3.9 dB, or less,
resistors R2 and R3 on the control board
should be placed in the circuit. This is done
by moving the option pins from B-C to A-B as
shown by Fig. 5.
(3) If loss of loop exceeds 12 dB the quality of
the service may be impaired. Defer, according
to local procedures, until an acceptable loop is
made available.
.09 Connect the set to the telephone line by
inserting the mounting cord into the connecting
lock.
.10 Remove the gum-backed "OPTIONS" sticker
which is packed with the base and attach
the bottom of the base near the front. If
he service order does not call for the implementation
f any options (Dial Pulse, Lockout, or disconnection
f the ringer) at this time, reassemble set and
roceed to 3.12.
TransactionII 3-11
155 1, SECTION 502-323-401
Note: If the order calls for making dial of
hand telephone set inoperable, do not disable
dial until all testing is completed.
OPTIONS
3.11 If the service order specifies that the Dial
Pulse and/or Lockout options be activated,
or that ringer be disconnected, access the main
PWB (3.07) and proceed as follows:
(a) If both Dial Pulse and Lockout options are
called for:
(1) Place TT/DP option plug for DP per Table
D.
(2) Place upper housing and chassis back on
set and reconnect AC power cor_d.
(3) Go off-hook and, using manual entry pad,
dial any test number and verify that the
call is completed. This tests the dial pulse
feature .
(4) Disconnect power cord, lay upper housing
and chassis aside, and move Lockout
option plug to lockout position per Table D.
(5) Reassemble set and reconnect AC power
cord.
(6) Test lockout by going off-hook and
depressing any button on manual entry
pad to verify absence of TOUCH-TONE
frequency signals.
(b) If only Dial Pulse option is specified:
(1) Proceed as in (a) Steps (1), (2), (3) and
(5).
(c) If only Lockout option is specified:
(1) Move Lockout option plug per Table D.
(2) Reassemble set and reconnect AC power
cord.
(3) Test lockout by going off-hook and
depressing any button on manual entry
pad to verify absence of TOUCH-TONE
frequency signals.
Page 5

3-11 Transaction
II
SECTION 502-323-401
LOOP
TABLE C
ADJUSTMENT OF TOUCH-TONE OUTPUT LEVEL (NOTE)
OPTION PLUG POSITIONS WIRING ON CONTROL BOARD
LOSS IN ON MAIN PWB RESISTOR - R2:j: RESISTOR - R3:j:
DBs REMOVE CONNECT REMOVE CONNECT
R-34
R-3!:i
R-36 FROM TO FROM
0 to 1.9* E33-E34 E31-E.'12 E2'l-E29 B-Ct A-B B-Ct
2.0 to 3.9• E34-E35 E30-Eal E28-E29 B-Ct A-B B-Ct
4.0to5,9 E34-E35t E30-Ealt E27-E28t
6.0to7.9 E34-E35 E30-E81 E28-E29
8.0 to 10.4 E34-E35 E31-E32 E27-E28
10.5 to 12 E34-E35 E31-E32 E28-E2!J
*
If
loop loss is 3.9 dB or less, resistors R2 anC.R:3 should be conr..ected into the circuit as shown.
t Plug positions when shipped from factory.
:j:
Designations are not on hoard, see Fig. 5.
Note:
See Fig. 4 for location of option plugs on main PWB.
See Fig. 5 for location of wiring option on control board.
TABLED
l~LACEME:NTOF OPTION PLUGS (SEE NOTE)
OPTION PLUG POSITION RESULT
TO
A-B
A-B
Key Pad E42-E43* Not locked (can dial out from key pad)
Lock E43-E-14 Locked (-cannm dial out from key pad)
out
TT/DP E21-E22* Key pad dials in TT frequencies
Dialing E22-E23 Key pad sends out dial pulses
Power Resets termrnal to ON-HOOK condition
Up E39-E40* following: commercial power failure.
Reset
*
Option plug positions when shipped.
Note:
See Fig. 4 for location of option plugs.
NOMINAL
OUTPUT
LEVEL
IN DBM
-13.5
-11.5
9.5
7.5
5.5
3.0
(d) To disconnect P2B ringer:
Note:
Indicate on the sticker on the base
of the set any options that are implemented.
(1) Remove red (R) and black (BK) ringer
leads from terminal Pl and T, respectively,
on control board, insulate and store.
(2) Reassemble set and reconnect AC power
cord.
Page 6
3.12
With handset on-hook, plug in power cord
and then go off-hook momentarily to reset
Transaction II telephone set.
Note:
If no lamps light when handset is
taken off hook, either AC receptacle is defective

RING R
VOL ME
CON ROL
VOLUE
CON OL
FOR
ALL
PROGESS
SOUNER
0
0
0
Fig. 3-Bottom of 5100AM Transaction
II
Telephone
Base Showing Upper Housing Screws and
Mounting Cord Jack
or fuses may be open.
If
fuses are suspected,
refer to 4.02 in Maintenance section.
PRELMINARY TEST PROCEDURE
3.13
Go off-hook by lifting handset; first and
fourth instruction lamps will light. Replace
the andset; both lamps will extinguish. Press
the N button; both lamps will light again. Run
ard B (card is packed with the 5100AM base)
gh the card reader from right to left. Card
mus be held with the magnetic stripe down and
to t e front and must be moved through the slot
smo thly and without hesitation. First instruction
lam should go out and second instruction lamp
shou d light. Correct operation of these lamps
indi ates that the test card is properly coded and
the ard reader is good. If the card is not read
corr ctly the first lamp will blink and the card
read ng procedure should be repeated. Press the
OFF button; both lamps will extinguish.
Transaction
II
3-11
ISS 1, SECTION 502-323-40 l
INSTALLATION TEST PROCEDURES
3.14
Using the TRIMLINE handset, perform the
normal tests, including ringback, for a rotary
or TOUCH-TONE telephone set (as applicable)
according to local procedures.
3.15
Depress ON button (listen to dial tone), and
check operation of call progress tone sounder
volume control (Fig. 1). Adjust volume control to
acceptable level and depress OFF button.
REMOTE TEST PROCEDURE
ft In the following tests there must not
be over
a 10-second delay between
steps or the test line will interpret
this as an error.
Note:
If
an interrupted (1/2 second on, 1/2
second off), lasting about 5 seconds, is heard
at any time, an error is indicated. The lA
Transaction Telephone Test Line Station
(TTTLS) will disconnect at the end of the
interrupted tone. To retest, it will be necessary
to redial the test line (3.16) through (3.22).
3.16
Go off-hook by lifting the handset, first
and fourth instruction lamps are lighted and
dial tone is heard. (The fourth instruction lamp
will remain lighted as long as the set is off-hook.)
Manually dial the number of the lA Transaction
Telephone Test Line Station (TTTLS) using the
TRIMLINE handset.
3. 17
When the call is completed to the TTTLS,
it will respond with a 3-second answer tone
which will be heard on the TRIMLINE handset.
After the answer tone has terminated, the test
card should be passed through the reader two (2)
times. The instruction lamps should sequence-the
second instruction lamp should light after the card
is passed through the first time, and when the
card has been passed through the second time,
the third lamp will be lighted.
3.18
Key in digits by depressing buttons on the
manual entry pad,
in sequence,
1 through
9,
e,
0, /, and END. The third instruction lamp
will now be extinguished. While you are doing
this, the set will transmit the buffered data as
TOUCH-TONE pulses. The digits keyed in will
have appeared on the visual display as they are
Page 7

3-11 TransactionII
SECTION 502-323-401
~
:::lOPTION D
'--0
E82
DATARECEIVERBOARD
I
R35[ :::
C
E32
0
TERH
0
E79
E3~(')
E4J"--O
E41 I)
0
EH]
0)
E34
o./ E35
0)
E42
l
o./ E43
0
E44
LOCKOUT
0) E27]
0
EZ!
R36
0
E29
HAIN PWB TT/DP POWERUP RESET
NOTE: DUETO SPACE LIHITATION ONcYTWOPINS HAYBE IDENTIFIEO ON EACHOPTIONPLUG
Fig. 4-Main PWB and Data Re,:eiver Bo,~rdShowing Option Plug Locationsand Plug Positionsas Shipped
keyed and the display will clear when transmission
is completed.
3.19
The green (G) response lamp will then flash
and the display shall be filled with 8's.
3.20
Press the ERASE button. The display
should fill with decimal points, and the (G)
response lamp will continue to flash.
3.21
Key in
1,
2, 3, END. The display should
erase and the yellow (Y) lamp should light.
If
the (Y) lamp does not light and the display
Page 8
shows E-0-0, reenter 1, 2, 3, END (you have 7
s,econds to do this) and the (Y) lamp should light.
3.22
Press ATTN. A muted 3-second response
is heard and the TTTLS will disconnect.
Place handset on-hook. The (Y) lamp may be
extinguished by momentarily going off-hook.
AUXILIARY MANUAL ENTRY PAD
3.23 If
the auxiliary manual entry pad is to be
used, it should be installed at this time.

A
0 0
A
SPEAKERBOARD
MOUNTINGSCREWS
Y1 TERMINAL
UNDERSPEAKER
BOARD~,-.
'(/1
~
',--'
I
(5) SPADE
TIPPED LEAD
SPEAKERBOARD CONTROLBOARD
NOTE:
A, B, AND
C DESIGNATIONSARENOT
SHOWNONBOARD.FORREFERENCEONLY
r
g. 5-Control Board and Speaker Board Showing
Location of R2 and R3 Option Plugs and
Terminal Yl
~o install the D-180687 Kit of Parts (Fig. 7) which
ifcludes:
1 - 5000A-50 dial
1 - 841934946 mounting plate
1 - 651G key (push-to-lock, push-to-unlock)
4 - 840694194 screws
1 - 840713366 label
2 -
D-161488 connectors (provided with kit
of parts manufactured after 1st quarter of
1976).
(1) Remove faceplate by lifting at the midpoints
of the right and left edges. When faceplate
TransactionII 3-11
ISS 1, SECTION 502-323-401
is bowed slightly, the locking tabs at top and
bottom will release.
Note: An 138D-type faceplate (ordered
separately, Table A) will also be required.
(2) Install 841934946 mounting plate and 651G
key (Fig. 8) as follows:
(a) Remove screw holding static arrester
spring (Fig. 8) and slide mounting plate
under the spring. Replace the screw holding
the spring and the associated lead. This
should secure right side of mounting plate.
(b) Secure left side of mounting plate with
(2)
840694194 screws.
(c)
Insert 651G key with cut-out portion of
key mounting to right and the two indexing
or alignment holes over tabs on the mounting
plate to the left.
(d) Secure right side of key using the other
(2)
840694194 screws provided.
(3) Install new 138D-type faceplate.
(4) Open the set (3.07); lay the upper housing
and chassis to the right (Fig. 6).
(5) Hold the lower housing up on its side and
feed the mounting cord of the dial through
the cord entrance hole in the base pan. Using
Fig. 6, make connections as follows:
(a) Plug multipin connector of mounting cord
into connector on flex ribbon cable.
Note: A polarizing key in the female connector
assures proper mating of connectors.
(b) Connect 508 plug to 651G key.
(c) Connect the black (BK) spade-tipped
mounting cord conductor to terminal E8A
on the main PWB.
(d) Connect the spade-tipped blue-black (BL-BK)
mounting cord conductor to the spade-tipped
(BL-BK) lead from terminal E79 on the main
PWB using a D-161488 connector. Insulate the
connection.
Page 9

3-11 Transaction II
SECTION 502-323-40 I
FUSES TERMINAL EBA
DATA RECEIVER BOARD
(MAIN PWB IS UNDER
DATA RCVR BOARD)
5000A DIAL
MOUNTING CORD
MULTI PIN
CONNEC TOR
FROM 5000A
DIAL
P28
RINGER
I
CHASSI~ JPPER
HOUSING
5000A DIAL
OPTION PLUGS
FOR R2
S.
R3
CONTROL
BOARD SPEAKER
BOARD
Fig. 6-51 00AM Transaction II Telephone Set Base With Upper Housing and Chassis Laid Aside, 5000A Dial
Connected
Not e: In later production models there is a
push-on terminal at E79 instead of a spade-
tipped lead. Connect the (BL-BK) mounting
cord conductor to this terminal.
(e) Connect the spade-tipped slate (Sl mounting
cord conductor to the spade-tipped (S)
lead from terminal Yl on the control board
using a D-161488 connector. Insulate the
connection.
Note : In later production models, terminal
Yl is accessible at the lower right corner of
the control board. Connect the (S) mounting
cord conductor to terminal Yl.
Page 10
(f)
Insulate and store any unused mounting
cord lt'ads.
(6) Pull slack out of mounting cord as upper
housing and chassis are replaced . Invert set
and tighten capti,·e screws holding the upper
and lower housing together.
(7) Place jacketed portion of mounting cord
under strain relief as shown in Fig. 3.
3.24
To test the auxiliary manual entry pad, press
the Personal Identification Number (PIN)
ke:-· to enable the pad. Obserw that both Light
Emitting Diodes (LEDi light. one on the PIN key
and one on the 5000A-50 dial. Depress PIN key
again and obsen-e that both LED's are extinguished.

840713366
LABEL
Transaction II 3- 11
ISS
1,
SECTION
502-323-401
MULTI PIN
CONNECTOR
841934936
MOUNTING PLATE
840694194
SCREWS
Fig. 7- D-180687 Kit of Parts
3.25
Repeat 3.16 and 3.17 and then press the
PIN key to enable the pad.
3.26
Key in by depressing,
in seq uence,
digits
I through 9, • • and O on the 5000A-50 dial.
(None of the entries from the 5000A-50 dial should
appear on the display.) Depress / (slash) on the
5100AM base and then depress END on the 5000A-.50
dial. The third instruction lamp shall be extinguished.
3.27
The (G) response lamp shall flash and the
display shall be filled with S's. Depress
the PIN key and observe that the LED's (on both
the 5000A-50 dial and the 5100AM base) shall be
extinguished. Hang up the hand telephone set.
3.28
Depress the PIN key and then the ON
button. The first and fourth instruction
lamps should light . Depress the END button on
the manual entry pad of the 5100AM telephone set
base and then depress the END button on the
5000A-50 dial. First instruction lamp is extinguished
and second lamp is lighted. Depress OFF button
and then the PIN key. All lamps should now be
extinguished. This completes the testing procedure
of the auxiliar:,.· manual entr:,.· pad.
3.29
If the customer has a dialing card, ask him
to use his card and place a call to his data
center to \·erify that he can reach it.
3.30
This completes the test procedures. \\"rite
the telephone number of the TTTLS on the
test card for customer's future reference and give
test card to customer along with the Subscriber
Instruction Booklet. Explain to the customer the
use of the test card per Subscriber Instruction
Booklet.
DIAL RESTRICTION OF HAND TELEPHONESET
3.3 1
Some customers may want the dial of the
hand telephone set restricted from making
outgoing calls. This feature is not recommended
Page 11

3-11 Transaction
II
SECTION 502-323-401
138D-TYPE
FACEPLATE
841934946
MOUNTING 651G
PLATE KEY
STATIC
ARRESTER
SPRING
Fig. 8- 5100AM Transaction
II
Telephone Set With Faceplate Removed for Installation of 651G Key
and will only be incorporated at the customer's
insistence.
Not e: If dial restnct10n is to be pro\'ided,
all installation tests must be completed prior
to making the modification.
If dial is res tricted , the set can no
longer be used as a normal telephone
set since calls can only be initiated
by a dialing card.
3.32
Only the 220-type hand telephone set may
be restricted . If dial restriction is requested
at a location that has been equipped for TOUCH-TONE
ser\'ice, the 2220-type hand telephone set should
be replaced with a 220-type hand telephone set
that has been modified per
3.33.
3.33
To restrict the dial
in
a 220-type hand
telephone set, proceed as follows:
(1)
Remove handset cord from handset using
KS-21107 release r or t>quivalent.
Page 12
(2) Remon' cover or number card retai ner
located just above dial using KS-21107 release r
or equirnlent.
(3)
Remove light sea l plate and the 2 screws
located under retainer . This will relpase
the CO\'er from the handset.
(4)
Place a ,trap between th e pulsing contac ts
as shown in Fig. 10. The dia l will rema in
in the handset.
(5) Reassemble handset and reconnect handset
cord.
(61
~ote this modification on the option sticker .
3.34
Outgoing calls may now be made only by
using a dialing card.
4. MAINTENANCE
Before attempting to make any
maintenance tests, check option sticker
under base of set, to see what options
(3.11 or 3.33) may have been implement.ed

Transaction II
3-11
ISS 1, SECTION 502-323-401
Fig. 9-Transaction II Telephone Set With
5000A
Dial Installed
ADD STRAP TO
RESTRICT DIAL
Fig. JO-Restricting Dial of
220A
Hand Telephone
Set
4.01
In case of commercial power failure, Transaction
telephone sets can be used as standard
telephone sets using the TRI:IILI~E handset. All
other functions of the Transaction telephone set
are n'rnlererl irn,pPrative by the loss of
A('
power.
ft
If dial of hand telephone set has been
restricted (3.33), the set can not be
used as a standard telephone set. The
restricted handset may be unplugged
and replaced for maintenance
testing purposes. Be sure to
reinstall customer's handset when
testing is completed.
4.02
There are two fuses. (Fl for 12 ,·olt and
F2 for +5 ,·olt circuitr:,
I
houst>d in plastic
"in-line" holders and locatt>d at the lrft rear corner
of the main
P\\'B . If
a fuse failure is suspected.
the fuses ma~· be remo,·ed (access per 3.061, and
chPcked ,·isuall~· or obsen·e the following indications:
(1I If fuse Fl is open:
(al Depressing the 0~ button will not take
set off-hook, (no dial tone heard on call
progress sounder!.
Page
13

3-11 Transaction II
SECTION 502-323-401
(b) No TOUCH-TONE signals may be heard
on handset when buttons are depressed
on manual entry pad.
Note: If Lockout option has been activated
this would be an inconclusive test.
(c) Lights on set may or may not be operable.
(2) If F2 fuse is open, there will be no lamps
operable on set. These are Bussman MDL
two (2) ampere fuses and may be obtaind locally.
WARNING: FOR CONTINUED
PROTECTION AGAINST FIRE HAZARD,
REPLACE FUSES ONLY WITH 2
AMP SLO-BLO (BUS MDL) OR
EQUIVALENT .
4.03 Other field maintenance of the sets shall
consist of the following:
(a) Check for line continuity (dial tone).
(b) Check for proper connection of cords and
jacks.
Page 14
(c) Check for loose wire or connections on main
PWB or control board (Fig. 11).
(d) Replacement of H4DU-50handset cord and/or
227A adapter.
(e) Replacement of D4BU-29 mounting cord.
(f) Replacement of TRIMLINE handset.
(g) Replacement of auxiliary manual entry pad.
4.04 If the loss of the loop changes due to cable
activity, etc. and/or difficulty is encountered
in communicating with the remote data center,
the loop loss should be measured and the
TOUCH-TONE signal output level adjusted per 3.08.
4.05 Field repairs on the 5100AM base shall not
be attempted. Return defective base to
Western Electric Service Center in accordance with
local procedures. If base is being replaced, return
disposable faceplate from new base with the used
base.

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!BU TO CAROREADER BRAIDTO STATICARRESTER'
I 623£4 JACK 616PJACK tl-SWITCHHOOK-t I TRANSFORMER ]J I ~GULAT~
MOUNTING r.
(MOUNTINGCORO) (HANDSET (BKl MTG SCREWS I 2 3 4 5 ES E6 E7 E: E,
SCREW I CORO) __.;.
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~:ii'!,§ ~
cc
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E
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DISPLAY Ib b b
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BOARD
,. El E2 E3 E4 f.5 E6 f.7 E EBA E9
OT E79
(Bll -) MAIN BOARD -12 GRO +5 @
' !BK) 10 IBLIIIBKII IRII
~LUME lf~B ® G~~}
NTROL K H@- ~
- -- -- - ----- - - - - - -- ----- -- -- -- ___________ J
L: (01~C B~~RD E@- ~
s;R(~):)1 (0) '
(BR-Y) "
0 0 " Pl
~
I~ 0 ,0'"'
SPEAKER H
(Y-6) 'Vf·
~
3
:RJ RT (G) (BK) (0-BKJ
'~ " "" "' (l
SKI
IGI i"': • """j"" 0 0
'- T2L j ~~-S! A Al RR
~
XI
(BK) (BK) ....,___\l ' (BK) (W)
(RI ""'OT R2 ·12
\ ~5 GRD 4
J \ 0 (•)
\ (RI
\ (0-BRI lBA-YJ
LEGEND"
0 SCREWTERMINAL IG) 0
@ PUSH-ON TUBULARFITTING OVER ROUNDPIN
~
CJ "SPANISH" TERMINALS THAT RECEIVE CORDSPADETIPS
~
• SOLDEREDCONNECTION GI
CONTROL
BOARD
Fig. I I-Partial Schematic Showing Conductors Attached by Screws or Push-On Terminals
iii
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