Panasonic KX-TE82480SX 2?8 Expansion Card

Panasonic KX-TE82480SX — 2×8 Expansion Card for KX-TA824 / KX-TES824

The Panasonic KX-TE82480SX is a 2 CO line and 8 hybrid extension expansion card for the Panasonic KX-TA824 and KX-TES824 Advanced Hybrid Telephone Systems. It is a plug-in module that installs directly into one of the expansion card slots in the KX-TA824 or KX-TES824 control unit, adding two additional analogue central office (CO) lines and eight additional hybrid extension ports to the base system without requiring any external hardware or wiring infrastructure beyond the card itself.

The KX-TE82480SX is the primary capacity expansion component for the KX-TA824 / KX-TES824 platform — the mechanism by which these systems grow from their base configuration to their maximum capacity. Understanding where this card sits in the system’s expansion architecture is essential for correct specification.

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System Expansion Architecture

The Panasonic KX-TA824 and KX-TES824 are supplied in a base configuration supporting 3 CO lines and 8 extensions. Both systems have two expansion card slots that accept optional cards to increase capacity. With up to two KX-TE82480SX cards installed, the system reaches its maximum configuration of 8 CO lines and 24 extensions — the ceiling of the platform.

The expansion path is as follows:

Configuration	CO Lines	Extensions
Base system (no cards)	3	8
Base + 1× KX-TE82480SX	5	16
Base + 2× KX-TE82480SX	7	24

Note that the base system includes 3 CO lines and 8 hybrid extension ports on the control unit motherboard. Each KX-TE82480SX card adds 2 CO lines and 8 hybrid extension ports, up to the system maximum of 8 CO lines and 24 extensions total. A maximum of two KX-TE82480SX cards can be installed per system, one in each available expansion slot.

This architecture means the KX-TE82480SX is not a peripheral add-on but a core scaling component — businesses purchasing the KX-TA824 or KX-TES824 with growth plans should factor the card count and system maximum into their initial procurement planning.

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CO Line Ports

Each KX-TE82480SX card adds two analogue CO line ports. These ports connect to standard PSTN telephone lines from the service provider — the same analogue loop-start lines used by the base system’s onboard CO ports. The two additional CO lines become available to all system users for outgoing call access and incoming call routing, subject to system programming.

With one KX-TE82480SX installed, the system supports up to 5 simultaneous external calls (3 base + 2 card). With two cards, up to 7 simultaneous external calls are supported (3 base + 2 + 2). These figures represent the number of concurrent external conversations the system can handle at maximum CO line capacity.

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Hybrid Extension Ports

Each KX-TE82480SX card provides eight hybrid extension ports. Hybrid ports on the KX-TA824 / KX-TES824 platform accept both Panasonic Analogue Proprietary Telephones (APTs) and standard single-line telephones (SLTs). This dual compatibility is a significant practical advantage:

Analogue Proprietary Telephones (APTs) — Panasonic system phones such as the KX-T7730, KX-T7731, KX-T7735, KX-T7736, and KX-T7000 series connect to hybrid ports and access the full feature set of the KX-TA824 / KX-TES824 system — including direct station selection (DSS) keys, busy lamp field (BLF) display, one-touch speed dial, intercom, call transfer, and caller ID display on models with LCD.

Single Line Telephones (SLTs) — Standard analogue telephones, fax machines, modems, credit card verifiers, cordless handsets, and answering machines can all be connected to hybrid ports. These devices receive basic telephony features — dial tone, incoming calls, hold recall, and intercom access — without requiring proprietary Panasonic handsets.

This hybrid architecture allows businesses to mix proprietary system phones at primary positions (reception, manager desks) with standard analogue devices at secondary positions (fax machines, back-office phones) within the same expansion card’s port count.

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Caller ID Capability

The KX-TE82480SX card itself does not include built-in Caller ID functionality for the CO lines it adds. Caller ID on the card’s CO lines requires the addition of the KX-TA82493 Caller ID Card, which is a separate optional module. Businesses requiring incoming call identification on the CO lines provided by the KX-TE82480SX should include the KX-TA82493 in their expansion planning.

The base system includes built-in Caller ID for its onboard CO lines (KX-TA62493-3 card). Caller ID coverage therefore depends on which CO lines are in use and which additional cards are installed.

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Installation

The KX-TE82480SX installs into one of the two dedicated expansion card slots on the KX-TA824 / KX-TES824 control unit. Installation does not require specialist tools — the card is a plug-in module that seats into the expansion slot and is secured within the cabinet. Either expansion slot accepts the card; there is no slot-specific restriction.

After installation, the system recognises the additional CO lines and extension ports automatically. System programming — extension numbering, line assignments, ring group configuration, and call routing — is updated via the system programming interface (handset-based programming on extension 01, or via PC using the USB programming interface on supported firmware versions).

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Compatible Systems

The KX-TE82480SX is compatible with the following Panasonic telephone systems:

• Panasonic KX-TA824 — Advanced Hybrid Analogue Telephone System
• Panasonic KX-TES824 — Advanced Hybrid PBX System

It is not compatible with other Panasonic PBX platforms such as the KX-TDA, KX-TDE, KX-NS, or KX-NSX series, which use different expansion card formats and architectures.

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Supported Applications

The KX-TE82480SX enables the following capacity increases on compatible systems:

• Additional CO line access — Up to 2 additional PSTN analogue lines for inbound and outbound calls
• Extension capacity expansion — Up to 8 additional hybrid extension ports for APT and SLT devices
• Fax and modem connectivity — SLT ports on the card support fax machines, modems, and data devices
• Cordless phone integration — Standard analogue cordless handsets connect to SLT ports
• Mixed APT/SLT deployments — Combination of Panasonic proprietary phones and standard devices on the card’s 8 ports
• Maximum system build — Two cards achieve the KX-TA824 / KX-TES824 maximum of 8 CO lines and 24 extensions

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Ideal Users

• Small Businesses Scaling Their KX-TA824 or KX-TES824 System — The KX-TE82480SX is the correct expansion component for businesses that purchased the KX-TA824 or KX-TES824 in its base 3-line, 8-extension configuration and now need additional lines or extensions. A single card brings the system to 5 CO lines and 16 extensions — covering the majority of small business growth requirements without full system replacement.
• Businesses Purchasing the KX-TA824 / KX-TES824 with Planned Expansion — Organisations procuring the KX-TA824 or KX-TES824 for a 12–24-user office should include one or two KX-TE82480SX cards in the initial order rather than purchasing the base system and adding cards later — minimising installation visits and ensuring the system is sized for anticipated user count from day one.
• Telecommunications Installers and System Integrators — The KX-TE82480SX is the standard expansion card for the KX-TA824 / KX-TES824 platform, stocked alongside the base system for complete system builds. A correctly specified system build identifies the required card count at the point of sale — one card for 5-line, 16-extension systems; two cards for the 8-line, 24-extension maximum.
• Offices Adding Fax and Dedicated Line Extensions — Businesses that need to add dedicated analogue fax lines, direct-dial extensions for specific staff, or dedicated modem ports for alarm systems or EFTPOS terminals can use the KX-TE82480SX’s hybrid ports for these purposes alongside standard desk phones.
• Reception and Multi-Department Environments — As businesses add departments or reception positions requiring direct-line access, the KX-TE82480SX provides the additional CO lines and extension ports needed to assign dedicated lines and extensions to new staff without replacing the core system.

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Card Specifications

Attribute	Detail
Model	KX-TE82480SX
Card Type	2 CO Line + 8 Hybrid Extension Expansion Card
Compatible Systems	Panasonic KX-TA824, KX-TES824
Installation Slots	Either expansion card slot
Maximum Cards per System	2

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Port Specifications

Attribute	Detail
CO Line Ports	2 × Analogue PSTN (loop-start)
Extension Ports	8 × Hybrid (APT or SLT)
Extension Port Type	Accepts Panasonic APTs and standard SLTs
Caller ID on CO Lines	Optional — requires KX-TA82493 Caller ID Card

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System Capacity with Card(s) Installed

Configuration	CO Lines	Extensions
KX-TA824 / KX-TES824 base	3	8
+ 1× KX-TE82480SX	5	16
+ 2× KX-TE82480SX (maximum)	7	24

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Physical Specifications

Attribute	Detail
Package Dimensions	35 × 24.8 × 6.4 cm
Package Weight	Approx. 740g
Power Source	Powered by host KX-TA824 / KX-TES824 control unit
Country of Origin	Vietnam

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Compatibility

Attribute	Detail
Compatible PBX	Panasonic KX-TA824, Panasonic KX-TES824
Incompatible PBX	KX-TDA, KX-TDE, KX-NS, KX-NSX series
Optional Accessory	KX-TA82493 Caller ID Card (for CO line Caller ID)