This data sheet outlines the technical specifications and deployment procedures for Cisco-compatible Power over Ethernet (PoE) injectors and adapters. These units are specifically engineered to support the diverse power requirements of Cisco IP Phones, Aironet/Catalyst Access Points, and compact switches, ensuring high performance within the Pakistani enterprise landscape.
Cisco PoE Injector Technical Data Sheet
Cisco equipment often requires specific power signatures. Our injectors support both standard IEEE protocols and Cisco legacy pre-standard power requirements.
General Specifications
Input Voltage: 100—240V AC (Wide range for Pakistan grid stability)
Output Voltage: 48V — 56V DC
Data Rates: 10/100/1000 Mbps (Gigabit) / Multi-Gigabit (2.5G/5G)
Standards Support: IEEE 802.3af, 802.3at (PoE+), and 802.3bt (UPOE)
Efficiency: Level VI energy efficiency
Reliability: Built-in ESD and Surge protection (up to 4kV)
Variant Compatibility Matrix
| Cisco Series | Model Examples | Recommended PoE Variant |
| Cisco IP Phone 7800/8800 | 7841, 8845, 8861 | 15.4W – 30W Gigabit |
| Aironet & Catalyst APs | 1850, 9115, 9120 | 30W PoE+ (802.3at) |
| Cisco Video/DX Series | DX80, Webex Room | 60W – 90W (802.3bt) |
| Legacy Cisco Phones | 7940, 7960 | Cisco Pre-standard 48V |
Deployment and Installation Guide
Cisco devices often require precise handshaking to activate power. Follow these steps for a successful deployment:
Installation Steps
Hardware Connection: Plug the injector into a grounded AC power outlet.
Data Link: Connect a patch cord from your Cisco Catalyst switch (non-PoE port) to the “Data In” port of the injector.
Power Delivery: Connect a high-quality Cat6 cable from the “Data & Power Out” port to the Cisco device.
Signal Check: Observe the Cisco device boot sequence. If the device is a Cisco AP, the LED will cycle through colors; for IP phones, the screen will illuminate within 5 seconds.
Configuration Details
Zero-Touch Intelligent Provisioning
Cisco Discovery Protocol (CDP): The injector allows CDP packets to pass through transparently, ensuring the Cisco switch can still identify the remote device.
Auto-Negotiation: The injector automatically negotiates power levels. There is no need to configure the Cisco IOS Command Line Interface (CLI) for power allocation.
Power Inline Consumed: On the switch side, you can verify connectivity using the command show power inline, which will display the device as “on” despite using an external injector.
Availability at SKYRS Pakistan
SKYRS is the exclusive source in Pakistan for “Smart-Sensing” Cisco PoE adapters that bridge the gap between standard PoE and Cisco’s proprietary power requirements.
Inventory Status: We maintain the largest local stock of High-Wattage (60W+) injectors for Cisco Webex and Catalyst Wi-Fi 6E systems.
National Reach: Same-day dispatch available for Lahore, Karachi, and Islamabad.
Exclusive Support: Technical consultation for Cisco power budgeting is provided only to SKYRS clients, ensuring you don’t under-power your critical infrastructure.
Important Note: Certain Cisco Access Points (like the 9100 series) may operate in “Reduced Power Mode” if provided with only 15.4W. For full 4×4 MIMO functionality, ensure you procure the 30W or 60W variants available only at SKYRS.
