OpenScape 4000 TMEW2 — E&M Tie-Trunk Module
E&M signaling card providing 4-wire tie-line connections between OpenScape 4000 systems or other PBXs — 4 tie trunks, Type 1/1A signaling, Delay Dial / Wink Start / Immediate Start protocols. SICOFI-based with on-board loadware management.
Specifications
- Tip / Type
- Trunk Module E&M (World)
- Order number / Part
- S30810-Q2327-X182
- Tie-trunk sayısı / Tie trunks
- 4
- Telleme / Wiring
- 4-wire Type I E&M
- Type 1 signaling
- Standart sinyalleşme ekipmanına bağlantı (offhook M = -48V, onhook = ground)
- Type 1A signaling
- TMEW2 ↔ TMEW2 back-to-back (offhook M = ground, onhook = OPEN)
- Sinyalleşme protokolleri / Protocols
- Delay Dial, Wink Start (en yaygın), Immediate Start (software-programmable)
- Mikroişlemci / Microprocessor
- On-board loadware
- Codec / Signal converter
- SICOFI latch outputs
- Yıldırım koruması / Lightning protection
- §2.3 referansı
Key features
- 4 tie-trunk ports — 4-wire Type I E&M signaling.
- Order number: S30810-Q2327-X182.
- PBX-to-PBX: OpenScape 4000 ↔ OpenScape 4000 or OpenScape 4000 ↔ third-party PBX.
- E (Ear/rEceive) lead: receives -48V, open or ground from the remote PBX → converted to +5V/0V logic.
- M (Mouth/transMit) lead: from microprocessor +5V/0V → converted to ground/open/-48V (SICOFI latch outputs).
- Type 1 signaling: offhook M = -48V, onhook = ground (standard signaling equipment).
- Type 1A signaling: TMEW2 ↔ TMEW2 back-to-back; offhook M = ground, onhook = OPEN.
- Signaling protocols (software-programmable): Delay Dial, Wink Start (most common), Immediate Start.
- On-board loadware microprocessor — manages E&M signaling via SICOFI.
- Lightning protection per §2.3.
Typical applications
Interconnect two organizations' OS 4000 PBXs without fiber/PRI — E&M tie-trunks.
Refresh legacy analog tie-line infrastructure on V11 platform.
Interop with third-party PBXs — Cisco, Avaya etc. via legacy analog tie-trunk standard.
Government/military closed network — secure inter-campus analog tie lines.
Hybrid TDM/IP migration — preserve legacy E&M trunks alongside new IP infrastructure.
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DetailsE&M signaling card providing 4-wire tie-line connections between OpenScape 4000 systems or other PBXs — 4 tie trunks, Type 1/1A signaling, Delay Dial / Wink Start / Immediate Start protocols. SICOFI-based with on-board loadware management.