Hexa Communications Private Limited

It appears to be part of the Siemens HiPath / Unify line — likely a module (card or board) used in PBX / telephony switching equipment. 

The full part number is S30810-Q2923-X200-2 (sometimes seen with suffix “-01” or similar revisions)

The '4SLA FC' seems to indicate the module's function — possibly “4 SLA ports, FC” — meaning 4 Subscriber Line Adapter (SLA) ports with some FC (could be “Front-Card” or another designator) feature. SLA in HiPath systems refers to lines for analog subscriber connections.

The full name is STMD8 (Station/Trunk Module Digital S0, 8 port). Sometimes simply called the Digital Trunk / Station Module. 

Part number: S30810-Q2558-X200 

Used in Siemens HiPath / Hicom systems (e.g. HiPath 3700, HiPath 3750, Hicom 150E (“Office” / “OfficePro”)) as an interface module (trunk/station) for digital “S0” ports.

The STMI2 is a Subscriber Trunk Module IP (IP gateway board) for the HiPath / Hicom communication systems.

Part numbers include S30810-Q2316-X (basic version) and S30810-Q2316-X100 (a revision or newer version) (“HG1500” variant in some listings)
It operates in “IPDA” (IP Distributed Architecture) systems — that means it bridges / converts between the internal PBX PCM / digital speech highways and IP (Ethernet / LAN) so it can support IP phones, remote endpoints etc. 

This module is a data and switch processor for the Hipath 4000 system. It operates the basic functions on the system. The X300 version comes with a 1Gb Memory.

Switching / System Control — the module implements base switching logic of the PBX / communication server. 

Packet / Data Processing (sometimes referred to as “ADP processing”) — it handles data traffic, internal and external signalling etc. 

Control of CompactPCI backplane / card buses — managing communication to/from other modules in the backplane. 

LAN / Ethernet interfaces — multiple LAN ports for different functions (e.g. service LAN, client LAN, internal IP / signalling)

Handling system functions like tone generation or incoming tone processing, clock control, possibly conferencing etc. 

TMANI is an analog trunk interface module (analog trunk board) made by Siemens / Unify. It’s sometimes called TMANI8 because it supports 8 analog trunk lines.

The part number S30810-Q2327-X100 is the variant used in HiPath 4000 / IPDA / related systems. 

In older HiPath / HiPath 3000 series documentation, TMANI boards are also discussed (e.g. in the HiPath 3000 service manual, under “TMANI, TMANI-IM, TMANI-BRA [TMANI8]”).

Full Name: Trunk Module for Subscriber (TMS2)

Type: Digital trunk interface board

System Use: Designed for HiPath / Hicom / Unify PBX systems (mainly HiPath 4000)

The CBCC stands for Central Board, Control & Connectivity (or similar), which is the main/master board of the HiPath 3350 / HiPath 3550 telephone systems. It does the job of switching, control logic and connects internal modules (analog & digital line cards, interfaces) with external trunks and subscriber lines. 

The variant Q2935-A301 is a newer version; often referred to as “CBCC V8” in some listings.

It is used in HiPath 3350 / 3550 systems (wall mount / compact systems), and also in some Octopus F200 / F400 systems. It supports features depending on the software/firmware version (HiPath / H3000 software). 

MCM stands for Management and Control Module. 

It is used in the Siemens HiPath 4000 / Communication Server 4000 family (also Hicom / CPCI shelf systems) as a control / management board in the CPCI shelf / common shelf.Part number variants appear including S30810-Q2313-X-5, S30810-Q2313-X100-3, etc. Possibly “-X100” denotes a newer revision or variant.  

STMI is a Subscriber Trunk Module – IP (or interface board) for the HiPath 4000 system under its IPDA (IP Distributed Architecture) mode. The module enables conversion of internal PCM / speech highway data (voice channels) into IP traffic over the LAN. 

Essentially, it acts as a gateway between the PBX’s internal digital / PCM infrastructure and IP networks, allowing IP endpoints or VoIP links to interface with the system. 

It includes both “central” and “peripheral” functions: handling PCM highway traffic, converting to/from IP, and managing the interface to 10/100Base-T LAN.

TS2 is a digital trunk interface module, more specifically an S2M / PRI trunk card (ISDN PRI / ISDN30E / “S2M” interface) used in Siemens HiPath / Unify systems. 

The full identifier is S30810-Q2913-X100. 

It is sometimes also referred to as the TS2R (rack variant) or simply “TS2 module.”

The SLMAV08N is a Subscriber Line Module, Analog Extension card.

 Part number S30810-Q2227-X300. 

It is used in the Siemens HiPath 3800 system (also under the Unify brand). 

Allows more modules for trunk lines, extension lines, digital/analog / IP / TDM interface cards to be added.

Helps scale up the system when the user base (phones, lines etc) grows beyond what the base cabinet can support.

Provides physical mounting (rack or floor / stand-mount) for extra cards. It can be in 19-inch rack form or stand-mount form. 

It’s used in HiPath 1150 / HiPath 1190 systems to provide extra digital extension capacity.