Cisco EHWIC-D-8ESG-P | 8-Port Gigabit PoE WAN Module

Cisco EHWIC-D-8ESG-P Performance & Technical Details

The Cisco EHWIC-D-8ESG-P is a double-wide, high-density Enhanced High-Speed WAN Interface Card that brings integrated Gigabit Ethernet switching and Power over Ethernet (PoE) capabilities to Cisco Integrated Services Routers (ISR) G2. Featuring 8 Gigabit Ethernet ports, this module is a premier choice for branch offices in Pakistan that need to power IP phones, wireless access points, and IP cameras directly from their router. By consolidating routing, switching, and power delivery into one chassis, it significantly reduces the hardware footprint and energy costs for enterprises in Karachi, Islamabad, and Lahore.

Key Performance Highlights

• Integrated PoE Support: Provides Power over Ethernet on all 8 ports, allowing for the direct attachment of IEEE 802.3af-compliant devices without needing external power injectors or bulky wall bricks.

• High-Speed Gigabit Switching: Offers 8 ports of non-blocking, line-rate 10/100/1000 Mbps switching. This ensures that internal data traffic, such as server backups or local file sharing, does not impact the router’s CPU performance.

• Double-Wide Form Factor: This module requires two adjacent EHWIC slots on the router’s backplane, providing the physical space necessary for high-density port layouts and PoE heat dissipation.

• Advanced Quality of Service (QoS): Supports 802.1p Class of Service (CoS) and differentiated services code point (DSCP) tagging. This is critical for Pakistani businesses using VoIP, ensuring voice traffic is prioritized over standard web browsing.

• Energy-Efficient Design: Works with Cisco’s power management features to monitor and reduce the power consumption of connected PoE devices during non-business hours.

Technical Specifications

Business Advantages for the Pakistan Market

1. Simplified Power Infrastructure

In many office buildings in Pakistan where electrical outlets are limited or poorly placed, the PoE capability of the EHWIC-D-8ESG-P is a major asset. You can mount Wi-Fi access points on ceilings or place IP phones on desks where no power sockets exist, as the data cable carries the electricity.

2. Space-Saving Branch Integration

For small branch offices or retail outlets with limited rack space, this “all-in-one” card eliminates the need for a separate 8-port PoE switch. This reduces clutter, simplifies cabling, and lowers the overall heat signature in small server rooms.

3. Centralized Management

For IT managers based in central hubs, managing the EHWIC-D-8ESG-P is seamless. Since the switch ports are part of the router’s configuration, you can remotely reset a frozen IP phone by simply toggling the PoE power on the specific port via the Command Line Interface (CLI).

Deployment Scenarios

• Unified Communications: Powering and connecting up to 8 Cisco IP phones in a regional branch office.

• Security & Surveillance: Running high-definition IP security cameras in retail environments with secure VLAN segmentation.

• Wireless Expansion: Connecting and powering multiple Wi-Fi access points to provide seamless coverage across an entire floor.

• Edge Computing: Linking local networked devices like biometric scanners and printers to the corporate network through a secure, high-speed gateway.

Related FAQs

1. Does the EHWIC-D-8ESG-P require an external power supply?

Yes. To provide PoE power to the ports, the host Cisco ISR G2 router must be equipped with an internal PoE Power Supply Unit (PSU). Without the PoE-capable PSU in the router, the ports will only function as standard data ports.

2. What is the maximum power provided per port?

This module supports the IEEE 802.3af standard, which provides up to 15.4W per port. It is ideal for standard IP phones and access points but may not support newer “PoE+” (802.3at) devices requiring 30W.

3. Can I use this card in a Cisco 1941 router?

Yes, as long as the 1941 has the PoE power supply installed. However, because it is a double-wide card, it will occupy both available EHWIC slots on the 1941, leaving no room for other EHWIC modules.

4. How do I enable PoE on a specific port?

PoE is usually enabled by default. However, you can manage it using the command power inline auto or disable it using power inline never within the specific interface configuration mode.

5. Is this module compatible with non-Cisco devices?

Yes. As long as the connected device follows the standard IEEE 802.3af PoE protocol, the EHWIC-D-8ESG-P will provide power and data connectivity regardless of the brand.