Instruction manual
Key System Form 3c, Continued
Non-Complex Configuration
Module
____ of ____
Slot No.
✸ Services
SUBSCRIBED TO: CHANNELS ASSIGNED TO SERVICE
❑ Ground-start
123456789
10 11 12
(T1 only)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Loop-Start
123456789
10 11 12
(T1 only)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Tie Trunk
123456789
10 11 12
(T1 only)
13 14 15 16 17 18 19 20 21 22 23 24
❑ MultiQuest 900 (w/wo DNlS)
123456789
10 11 12
(T1 only)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Megacom
123456789 10 11 12
(T1 or lSDN-PRl)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Megacom 800 (w/wo DNIS)
123456789
10 11 12
(T1 or ISDN-PRI)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Megacom/Megacom 800
123456789 10 11 12
(T1)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Software Defined Network
123456789
10 11 12
(T1 or ISDN-PRI)
13 14 15 16 17 18 19 20 21 22 23 24
❑ Accunet Switched Digital Service 1 2 3 4 5 6 7 8 9
10 11 12
(ISDN-PRI only)
13 14 15 16 17 18 19 20 21 22 23 24
!
❑ Other
123456789
10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
❑ Other
123456789
10 11 12
13 14 15 16 17 18 19 20 21 22 23 24
lSDN-PRI identification Service
✸ 
Will SID/ANl be used?
❑ No
❑  Yes,for
Incoming calls 
❑ ANI
❑  SID  ❑  Both... Prefer
then
Outgoing calls 
❑  IANI
❑  SID  ❑  SID/ANI Privacy
Note: 
The DNIS service is supported only on T1 services.
Channel Service Unit
❑ ❑
❑ 
*
Mfr AT&T AT&T
Md1
551-T1 L1
ESF-T1
REG#
GI 472-16819-DE-N
GIC 472-16544-DE-N
FIC 4DU 158 4DN 188
* If a CSU other than the two listed AT&T models is used, AT&T will not accept the responsibility
for its installation, connection, or testing.
✸ Required fields for presale.
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