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NOTE: The first power supply slot in each cabinet must be occupied by a PSU-B to supply
sufficient power to all 10 slots (nine universal and a processor slot) and support up to 56
stations. A second PSU-B may optionally occupy the second power supply slot.
Three Cabinet System
In a fully expanded three cabinet system (Figure 1–3), there are 26 universal card slots. This
allows a maximum of 360 stations or 406 lines when using TEPRI cards. Without TEPRI
cards, the maximum number of lines is 208 and the maximum number of stations is 360. The
third (expansion) cabinet is also controlled by an LCP2 card in a similar manner to that in the
second (expansion) cabinet and connects to the second cabinet’s LCP2 card via a 25-pair
cable. This processor resides in dedicated slot 10 and therefore does not deplete the number
of universal card slots. Additionally, the MCP2 card must be equipped with an ESM daugh-
terboard.
NOTE: The first power supply slot in each cabinet must be occupied by a PSU-B to supply
sufficient power to all 10 slots (9 universal and a processor slot) and support up to 56
stations. A second PSU-B may optionally occupy the second power supply slot.
Differences Between OfficeServ500 Systems
The following tables describe the different configurations allowed for each system—cabinets,
interface cards, daughterboards, and so on.
Table 1-1 Allowed System Configurations
OfficeServ500
Classification Component
S M L
Remarks
CABINET
g g g
MCP2
g g g
SCP2
g
LCP2
g
IOM g g g
Not installed in expansion cabinets.
SCM
g g g
MFM
g g g
RCM2
g g g
MISC g g g
Common resource daughterboards are in-
stalled on MCP2 card for ‘S’ and ‘M’ versions,
and on MCP2 / SCP2 / LCP2 cards for ‘L’
version.
ESM
g
Used for line expansion
MODEM
g g g
Installed on IOM
MGI2 g g g
Supports G.711, G.729, T.38, H323, SIP
MGI3 g g g
Supports G.711,G.729, G.723, T.38, H323, SIP
SYSTEM
(see Chapter 2
for a description
of interface cards
and daughter-
boards)
MGI3D/ITM3D
g g g
8 additional channels in MGI3