Reference Guide
IMACS System Release 5.1.9
1-3
System Overview
Chassis Types
Table 1-1. Card Slots for Front-Loading 891630 Chassis with Power Supplies on the Side
Type of Card
# of
Cards
Slots Used
Notes
CPU
1 or 2
C1, C2
One required in either slot
Server
0 to 3
P1, P2, P3
ADPCM, FRS, MCC, ATM, ISDN-PRI, PRI-BRI, IMUX, and IPR (P4
is not used for Server Cards)
WAN
1 to 4
W1 to W4
One required
Interface
1
IF
Required
Alarm
0 to 7
P1-4, W1-4 Internal/External, any user slot
E&M Voice
0 to 7
P1-4, W1-4 2/4-wire voice, any user slot
FXS Voice
0 to 7
P1-4, W1-4 2-wire voice, any user slot
FXO Voice
0 to 7
P1-4, W1-4 2-wire voice, any user slot
FXS-C Voice
0 to 7
P1-4, W1-4 2-wire voice, coin, any user slot
FXO-C Voice
0 to 7
P1-4, W1-4 2-wire voice, coin, any user slot
PPhone Voice
0 to 7
P1-4, W1-4 PPS and PPO voice cards, any user slot
B7R
0 to 7
P1-4, W1-4 FDL Mux, any user slot
BRI Data
0 to 7
P1-4, W1-4 BRI, any user slot
DS0-DP Data
0 to 7
P1-4, W1-4 The DS0-DP card Contra directional/Codirectional Data Unit
(DS0-DP/G.703) provides a 64 kbps interface to a DS0 time slot of a
T1 or E1 network. This is a 4-wire data card and inserts into any user
card slot.
FRAD Data
0 to 7
P1-4, W1-4 FRAD, any user slot
HSU Data
0 to 7
P1-4, W1-4 High-speed data, any user slot
OCU-DP Data
0 to 7
P1-4, W1-4 The Office Channel Unit - Dataport cards interface directly with Data
Service Units/Channel Service Units (DSU/CSUs) support data traffic
up to an including 64 kbps. This is a 4-wire data card and inserts into
any user card slot.
SRU Data
0 to 7
P1-4, W1-4 Sub-rate data, any user slot
Main Power
(AC/DC)
1 or 2
S1 and S2
AC or DC power supplies
Optional Power
0 or 1
S2
AC-to-DC converter (-48V)
Optional Ringer
0 or 1
R1
Ringing generator
