#$%%&$%%&0 #$3%7&!#,053/3/3652 | ADTRAN 4202023L4, 4202023L1

6-pin modular jacks for daisy-chaining shelves together (use straight through cable)

Fuse for left power supply

SMART 16

DUAL DC

POWER I/F

D T E

/

D C E

E

I

A

2

3

2

C	I
T

RN

L

L
I	O

NU

KT

ALARM

NO

#1

COM

NO

#2

COM

F1

5A

250V

3AG

F2

48V,4A

25-pin EIA-232 connector interface for asynchronous ASCII terminal VT100

(local and remote configuration)

Removable terminal strip for external alarm circuits or other devices

Fuse for right power supply

External DC Power Supply Specs: Shelf Input=48 VDC, 4 A

–

+

–

+

#1

#2

!

!

"#$%%%&&$%%%&'

(#)*+ ,)(* %%&-

,),* %%$$

,)(* %&

,),* %$

.//!

!

"#$%%&$%%&0'

"#$3%7&!#,053/3/3652

Image 33

ADTRAN 4202023L4, 4202023L1, 4202023L2, 4202023L3 manual #$%%&$%%&0 #$3%7&!#,053/3/3652

Contents

Page #$# Following conventions are used in this manual Important Safety Information Affidavit Requirements for Connection to Digital Services Page Page Service Digital Facility Service Order Network Type Page Page Page Page Applications Engineering 800 Caps Department 256 Aces Help Desk 888 874-ACES Technical Support 888 4ADTRAN +,*&+-55 # 0732 +92 + 5&=3 573*6+5!/-6$ Page +-/-601 Page #/-6+0,6 01 $+00+1 493-# 66+60,,-0 436+!9$1+46-6 #/-6.2!5&$ $!&5$ #/-6 123 #$%%&$%%&0 +1E+0 +40+-=536+++--+ =5,0 #%,#,0#1##$2 06-5*5.++++-0946 57&5H0000 #$3%&,# #66 13A #&*5 #&*&5 #&*5# #&*&5#+13A #&5 #5# #&5# 053/3/362 Fuse for left power supply #$%%&$%%&0 #$3%6&!#,053/3/3632 #$3%5&#$!#,053/3/3662 #$%%&$%%&0 #$3%7&!#,053/3/3652 Page # ,# +-.##$ 760#$6%&8+-.#,# #$6%3&# +!, ,8$ #$6%6&,,#$# +-01 #$6% #$6%7&#.#-9 ### 60-20++//= 1136+ 069 +19-0 024 11006+01+ +++1 6C+4+ 560-20 493++00+3 #$6% +#,-,# +-0 +6,0-96522 55&+ #$6%/&##1 01,-+ # ,+6,,--660-+5 #$6%&,,#$# SNMP/Telnet Disable Shelf 96%&.#9#$#$ 60$ 606# #$6%5 +--601 73+-0 +-01 # 5+-0 96%6&$ #+# ++613%46? 33? 613 $1C ++-613 #,# 11F8 Signal Ground Power IndicationShield Shield for cable Digit Present 53$4 34-613 ?5D #+# 5535$16535$16 33$4 537 357 +613 Transmit Data from DSU to Network-Tip Transmit Data from DSU to Network-RingNot Used Receive Data from Network to DSU-Tip +-/0#/-6 @,+#9##1 3+-# +9!/-6$ @,# ++#$,6!$ @,# #7* &++ ++1+ F7&5H0 A55!$ 585! $ #* #-#1 $1++ 55# ##%7# 64202023L1-1 Index-68