ATT DEFINITY Communications System Generic 3 For Single-Carrier Cabinets Instructions Manual

							201CR Modem Option Settings
September 1995 Issue 1 
H-5
Table H-5. Options Switch Settings for 201 CR Modem
Option Line Control Board (TP1B)
Description DesignationStrap In 
(Vertical)Strap Out
(Horizontal)
Transmit 
Line Signal 
Level-4 dBm ZE* 1,2,4,8
Switch Setting Digital
Board
(JB4B) 12345 678
Transmitter 
Tim i n gExternal YD O
Automatic 
AnswerDTR-Controlled
 OnlyYF* X
Grounding Signal Ground 
Connected to 
Frame GroundYK* Install 
E1-E 2
Function of 
Electronic 
Industries 
Association
Interface 
Pin  18Initiates 
Analog 
ReceiverYS X Install 
E3-E 4
Continuous
Receiver
Bit ClockOut YP* X
Sat ell ite In YQ* X
* =  Factory furnished
X =Closed
O =Open
Continued on next page 
						

							O ption Switch Setting s
H-6September 1995 Issue 1  
202SR Modem Option Settings
When the 202SR modem is used with a modular trunk data module, set the 
options on the modular trunk data module as shown in Table H-6. Options on the 
202SR modem are shown in Table H-7. When used for modem pooling, all 
factory-furnished o ptions are used except option YI must be selected instead of 
option YJ. 
Table H-6. Option Switch Settings on Modular Trunk Data 
Module Used With 202SR Modem
Switch Setting
1200 b au d ON
SW O N
SIGLS O N
HDX ON
All Others OFF 
						

							202SR Modem Option Settings
September 1995 Issue 1 
H-7
Table H-7. Option Switch Settings for 202SR Modem
S4 Switch Contact Setting On Transmitter-Receiver
Option Output
level
dBmWithout Reverse Channel With Reverse Channel
Description Designation 1 2 3 456712345 67
Tra nsm it
Line Sig nal
Le velZO* -4 XXXXXXXXXXXX XX
Soft 
Turnoff SquelchS2 Switch Contact Setting On 
Transmitter-Receiver
12345678 90
Soft Turnoff 
an d  
Squelch 
IntervalsR* 24  
milli-
seconds156 
milliseconds--XX--------O--O
Fast Carrier 
DetectionN* Out (23 milliseconds) -- -- -- -- -- -- X -- -- --
Clear to 
Send 
IntervalG* 180 millisecond s -- -- --XX------ ----
Automatic 
AnswerB* In X-------------- ----
Local Copy 
on Primary 
ChannelZB* Out -- -- -- -- -- X -- -- -- --
Cond ition 
of Country 
Code (Data 
Se t Re a d y)  
During 
Analog  
LoopbackYI On -- -- -- -- -- -- -- -- X --
S3 Switch Contact Setting
123456
Reverse 
ChannelZD* Out XX--------
X =Contact closed
-- = Contact not ap plicable
O = Contact open
* = Factory furnished
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							O ption Switch Setting s
H-8September 1995 Issue 1  
Option S3 Switch Contact Setting
Description Designation123456
Tra nsm it 
OnlyYH* Out -- -- O -- -- --
Echo 
Suppressor 
EnableYR* Out -- -- -- X -- --
Carrier 
Controlled  
TurnaroundYS* In ----------O
Early 
Country 
Code (Data 
Se t Re a d y) 
IndicationYV* Out -- -- -- -- X --
Grounding 
OptionScrew Switch Setting On Interface Circuit
ZG* Signal Ground Connected 
to Frame  GroundScrew Switch S1 Closed on Data Mounting
X =Contact closed
-- = Contact not ap plicable
O = Contact open
* = Fac tory furnished
Table H-7. Option Switch Settings for 202SR Modem — Continued  
Continued on next page 
						

							208BR Mo dem O ption Settings
September 1995 Issue 1 
H-9
208BR Modem Option Settings
When the 208BR modem is used with a modular trunk data module, set the 
options on the mo dular trunk data module as shown in Table H-8. Options for the 
208BR mo dem are shown in Table H-9. When used for modem pooling, all 
factory-furnished options are used except option YD must be selected instead of 
option YC, and option YM must be selected instead of option YN. 
Table H-8. Option Switch Settings on Modular Trunk Data 
Module Used With 208BR Modem
Switch Setting
4800 b au d ON
SW O N
SIGLS O N
SY N C O N
HDX ON
All Others OFF 
						

							O ption Switch Setting s
H-10Septemb er 1995 Issue 1  
Table H-9. Option Switch Settings for 208BR Modem
Option Switch
Description DesignationOutput
Level
dBm S1A S1B S1C S2A
Transmit Line 
Signal LevelZE* -4 DOW N UP DO WN U P
Switch Option Strap Position
Compromise 
Equalizer 
(4-dB Slope)WU * S2B U p
S2C U p
Data Set  Ready 
(DSR ) on for Analog 
Loop ModeYM S3 A U p
Automatic Answer YP* S3B Down
Transmitter 
Externally Time dYD S3 C U p
S4A** U p
Down*
S4B** U p
Down*
RS-CS Interval of 
50 milliseconds(Customer 
Switch)50 In
RS-CS Interval of 
150 millisecondsOut
* Factory installed **    Down p osition must be selected
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							Asynchronous 212AR Modem O ption Setting s
September 1995 Issue 1 
H-11
Asynchronous 212AR Modem Option 
Settings
When the asynchronous 212AR modem is used with a modular trunk data 
module, set the options on the modular trunk data module as shown in Table 
H-10. Options on the asynchronous 212AR modem are shown in Table H-11. 
When used for modem pooling, all factory-furnished options are used with the 
following exceptions: 
nSelect option XJ instead of option XK.
nSelect option YE instead of option YF.
nSelect option XL instead of o ption XM.
nSelect option YQ instead of option YR.
nSelect option XR instead of option XO.
Table H-10. Option Switch Settings on Modular Trunk Data 
Module (MTDM) Used With 212AR Modem
Switch Setting
300 baud ON
1200 b au d ON
SW O N
SIGLS O N
CI12 ON
TM 2 5 O N
CN18 ON
CH23 ON
RL21 ON
All Others OFF 
						

							O ption Switch Setting s
H-12Septemb er 1995 Issue 1  
Table H-11. Option Switch Settings for Asynchronous 212AR 
Modem
Switch Setting
Feature Option DescriptionS1 Switch Controls
123
Tip, Ring, 
Make BusyE* OUT O - - --
Country Code 
(CC) Indication 
for Analog LoopZF* ON -- -- X
Switch Contacts
S2 S5
12345678912
Speed Control XJ INTERFACE O----------------
Interface-
Controlled  
Make Busy/ 
Analog  
Loop-CNYE IN --O--------------
Tra nsm itt er 
Ti mi n gYC* INT ERNAL -- - - O O -- -- -- - - --
12 00 - b p s 
OperationYG* ASYNCHRONOUS/
ST ART -ST OP-- -- -- -- O -- -- -- -- O O
Character 
Len gth (Use 
With YG)YJ* 10 -BIT -- - - -- -- -- X -- - - --
Receiver 
Responds to 
Digital LoopYK* IN ------------O----
Interface 
Controlled  
Rem o te  D i g ita l 
Lo o pXL IN -- -- -- -- -- -- -- X --
S3 Switch Contacts
12345678
Loss of Carrier 
DisconnectS* IN X--------------
Receive Sp ac e 
DisconnectV* IN --X------------
* = Factory furnished X     = Contact closed
O = Contact open --     = Contact not ap plicable
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							Asynchronous 212AR Modem O ption Setting s
September 1995 Issue 1 
H-13
Feature Option DescriptionS3 Switch Contacts
12345678
CB and CF 
Ind i cationsA* COMMON -- -- X -- -- -- -- --
Send Spac e 
DisconnectT* IN ------X--------
Automatic 
AnswerZH* IN --------X------
Answer Mode 
Ind i cationW* CE OFF ----------O----
Speed Mode YP* DUAL -- -- -- -- -- -- O --
Interface 
Spee d 
Ind i cation 
Clock InputYQ IN -- -- -- -- -- -- -- X
Strapping Options
CN and Test 
Mo d e  
AssignmentsXR CN 1 8,  TM  2 5 I NSTA LL  E2  - E 3,  E4  - E 5
Sig na l Gr ou nd 
to  Fra me 
ConnectionQ* IN S1 CLOSED
* = Factory furnished X     = Contact closed
O = Contact open --     = Contact not ap plicable
Table H-11. Option Switch Settings for Asynchronous 212AR 
Modem — Continued  
Switch Setting
Continued on next page 
						

							O ption Switch Setting s
H-14Septemb er 1995 Issue 1  
Synchronous 212AR Modem Option 
Settings
When the synchronous 212AR modem is used with a modular trunk data module 
(MTDM), set the options on the mo dular trunk data module (MTDM) as shown in 
Table H-10. O ptions on the synchronous 212AR modem are shown in Table 
H-12. When used for modem  pooling, all factory-furnished options are used with 
the following exceptions: 
nSelect option YH instead of option YG.
nSelect option YO instead of option YP.
nSelect option YD instead of option YC
nSelect option YE instead of option YF.
nSelect option XL instead of o ption XM.
nSelect option XR instead of option XO.