OpenScape 4000 Cards
OpenScape 4000 DIUT3 — Digital Interface Unit Trunk Card
Digital interface board terminating external trunk connections on OpenScape 4000 — V11-era successor to DIUT2. Single PCB supports two loadware variants: E1 (ISDN PRI / CAS) and T1 (BOS / MOS / CVN).
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OpenScape 4000 SLMAV — 24-port Analog Subscriber Line Card
24-port T/R analog subscriber card for OpenScape 4000 — same feature set as SLMAE, supports CLIP and includes an internal 71 Vrms ring voltage generator (no external ringer needed). 1800 Ω loop drives a standard 600 Ω phone up to 4.5 km cable distance.
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OpenScape 4000 SLMC — DECT Cordless Base Station Line Card
Card providing 24 UP0/E lines for DECT cordless base stations on OpenScape 4000 — successor to SLC24. 48 ADPCM channels per board, cable distance up to 1000 m (ICCS).
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OpenScape 4000 SLMU — 24-port UP0/E Subscriber Line Card
24-port UP0/E card for OpenScape 4000 digital subscriber lines — successor to the SLMO and SLMOP boards. 2B+D ISDN Basic Rate interface, up to 1000 m cable length (ICCS).
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OpenScape 4000 STMD3a — ISDN S0 Station/Trunk Module (Variant A)
Variant A of the STMD3 board, combining STMD and SLMS functions on one card. 8 S0 trunk interfaces (each 2B+D); function-equivalent to STMD2 with new hardware. SIPAC backplane connector, on-board flash protection.
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OpenScape 4000 STMIX — HG 3500 Common Gateway Card
Common Gateway HG 3500 card that adds 120-channel SIP/IP trunk capacity to OpenScape 4000 — designed to migrate operator connectivity from TDM to IP, with hot-plug support.
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OpenScape 4000 STMIY — 120-channel Common Gateway Board
120-channel common gateway board for OpenScape 4000 — successor to STMIX and STMI4 (with PDMX module). High line density, modern USB service ports and LTU shelf integration.
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OpenScape 4000 TMANI — 8-port Analog Trunk Board
8-port analog trunk board for OpenScape 4000 — successor to TM2LP and TMC16. Supports HKZ Loop Start (worldwide) and country protocols such as DID Italy. Same layout/dimensions as the HiPath 3800 board, only the part number and LW differ.
DetailsOpenScape Business X3R/X5R Cards
OpenScape Business SLAV16R — 16-Port Analog Subscriber Card
16-port analog a/b subscriber card for X3R/X5R — CLIP support, successor of SLAD16. Connects analog phones, fax, answering machines, PA/announcement, door intercom amplifiers and voicemail. Max 4 cards per system; 8 front RJ45 jacks (2 subscribers per jack via Y-cable).
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OpenScape Business SLU8NR — 8-Port UP0/E Digital Subscriber Card
8 × UP0/E digital subscriber expansion card for X3R/X5R. Added to grow beyond the 8 onboard UP0/E ports; the X5R digital subscriber ceiling is 56. CP205T/CP405T and OpenStage T series digital phones connect to these ports.
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OpenScape Business STLSX4R — 4-Port ISDN S0 (BRI) Trunk Card
4 × S0 (ISDN BRI) trunk card for X3R/X5R. Front-panel R-series card for terminating ISDN basic rate lines.
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OpenScape Business TLANI4R — 4-Port Analog Trunk Card
4-port analog exchange line (trunk) card for X3R/X5R. Front-panel R-series card — not to be confused with X8 trunk cards (DIUT3/TMANI); X8 cards do not fit the X5R.
DetailsOpenScape Business X8 Cards
OpenScape Business X8 DIUT3 — 2 × S2M (PRI) Trunk Card
2 × S2M (ISDN PRI) digital trunk card for X8 V3 systems — successor of DIUT2. Terminates carrier PRI lines; rear-side connection (counts toward Rear Cover Plate budgeting). ⚠️ A different part from the identically named OS4000 DIUT3; the older DIUT2 is used only on V2 (OCCL) systems.
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OCCBL / OCCBH — UC Voice Channel Booster (DSP)
Booster cards extending the 8 onboard DSP channels of the X8 mainboard: OCCBL +40 DSP channels, OCCBH +120 DSP channels. Determines IP-TDM conversion, conferencing and voicemail channel capacity — required in dense IP/hybrid installations.
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OpenScape Business X8 OCCLA — V3 Mainboard
The new-generation (V3) mainboard of the X8 — system software runs on M.2 SSD. Slot 6 of the base box is dedicated to the mainboard. 8 onboard DSP channels; OCCBL/OCCBH boosters add more. The older OCCL (V2) board is used only in legacy projects.
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OpenScape Business X8 REALS — PFT Relay Card (4 Contacts)
The Power Failure Transfer (PFT) relay card of the X8 — on system/power failure it switches selected analog trunks directly to analog phones, keeping outside calling alive even if the PBX is down. Fits the REALS slot at the bottom of the base box; 4 contacts. The PFT4 relay (4 trunks) is available for additional fallback.
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OpenScape Business X8 SLMAV24N — 24-Port Analog Subscriber Card
24-port CLIP-capable analog (a/b) subscriber card for the X8. High-density connection of analog phones, fax, door intercoms and similar devices; wiring via the rear patch panel. An 8-port SLMAV8N variant exists but the 24-port card is preferred in practice.
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OpenScape Business X8 SLMU — 24-Port UP0/E Digital Subscriber Card
24 × UP0/E digital subscriber card for the X8 — successor of the discontinued SLMO8N and SLMO24N; the current single choice for digital subscribers on X8. Connects CP TDM (CP205T/CP405T) and OpenStage T phones; with the CMAe subboard it becomes SLMUC for DECT base station (BS5) connectivity. ⚠️ A different part from the identically named OS4000 SLMU.
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OpenScape Business X8 SLMUC — DECT Base Station Card (SLMU + CMAe)
Core card of the X8 Integrated Cordless (TDM-based DECT) solution: SLMU + CMAe echo cancellation subboard — successor of the SLCN card. BS5 base stations connect to its UP0/E ports; max 4 SLMUC per system, 128 registered DECT devices and 48 simultaneous calls per card. ⚠️ The OS4000 SLMC is a separate product.
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OpenScape Business X8 TMANI — 8-Port Analog Trunk Card (w/o Metering)
8 × a/b analog exchange line (trunk) card for the X8 — CLIP-capable, without GEE (metering); the variant sold for X8 in CPQ. Successor of TM2LP and TMC16. No on-board PFT — plan with the REALS PFT relay card for power-failure scenarios; wiring via the rear patch panel.
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