| Feature | Description |
|---|---|
| Product Name | Yealink EXP40 Expansion Module |
| Type | Expansion Module for Yealink SIP-T46U, T48U, T42U, T43U, and T41S IP Phones |
| Display | 160 x 320 pixel graphical LCD display |
| Keypad | 20 physical keys (12 programmable line keys + 4 soft keys + 4 navigation keys) |
| Key Features | 20 programmable keys, backlight support, flexible key configuration |
| Expansion Support | Allows up to 6 EXP40 modules to be daisy-chained for a total of 120 programmable keys |
| Display Features | Dynamic display with graphical interface for flexible key programming, status display, and call information |
| Power Supply | Powered through the connected Yealink IP phone (requires PoE) |
| Compatibility | Compatible with Yealink SIP-T46U, T48U, T42U, T43U, T41S (requires software version support) |
| Mounting Options | Can be mounted on a desk or wall; connects directly to the Yealink IP phone |
| Dimensions | 197mm x 160mm x 40mm (7.76″ x 6.30″ x 1.57″) |
| Weight | Approximately 0.46 kg (1.01 lbs) |
| Color | Black |
| Environmental Requirements | Operating Temperature: 0°C to 40°C (32°F to 104°F), Storage Temperature: -10°C to 50°C (14°F to 122°F), Humidity: 10% to 90% RH, non-condensing |
| Security Features | Secure communication through the base phone’s protocols, including support for encrypted provisioning |
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