1-3NOTE: The first power supply slot in each cabinet must be occupied by a PSU-B to supplysufficient power to all 10 slots (nine universal and a processor slot) and support up to 56stations. A second PSU-B may optionally occupy the second power supply slot.Three Cabinet SystemIn a fully expanded three cabinet system (Figure 1–3), there are 26 universal card slots. Thisallows a maximum of 360 stations or 406 lines when using TEPRI cards. Without TEPRIcards, the maximum number of lines is 208 and the maximum number of stations is 360. Thethird (expansion) cabinet is also controlled by an LCP2 card in a similar manner to that in thesecond (expansion) cabinet and connects to the second cabinet’s LCP2 card via a 25-paircable. This processor resides in dedicated slot 10 and therefore does not deplete the numberof 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 supplysufficient power to all 10 slots (9 universal and a processor slot) and support up to 56stations. A second PSU-B may optionally occupy the second power supply slot.Differences Between OfficeServ500 SystemsThe following tables describe the different configurations allowed for each system—cabinets,interface cards, daughterboards, and so on.Table 1-1 Allowed System ConfigurationsOfficeServ500Classification Component S M L RemarksCABINET g g gMCP2 g g gSCP2 gLCP2 gIOM g g g Not installed in expansion cabinets.SCM g g gMFM g g gRCM2 g g gMISC g g gCommon 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 expansionMODEM g g g Installed on IOMMGI2 g g g Supports G.711, G.729, T.38, H323, SIPMGI3 g g g Supports G.711,G.729, G.723, T.38, H323, SIPSYSTEM(see Chapter 2for a descriptionof interface cardsand daughter-boards)MGI3D/ITM3D g g g 8 additional channels in MGI3