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- Description
- Specifications
Cisco 2911, 2921, 2951, 3925 and 3945 routers take the SM-ES3G-16-P, a single-wide Layer 2 and Layer 3 enhanced EtherSwitch service module with 16 10/100/1000 Ethernet ports and PoE support. The Cisco 2901 and 1941 are not supported.
Install counts are one module in a 2911 or 2921, up to two in a 2951 or 3925, and up to four in a 3945. The ports use RJ-45 connectors and can be set to 10, 100 or 1000 Mbps in full duplex, with autonegotiation as the default. The attached device has to be within 100 meters (328 feet). The SFP slots found on the 48-port modules are not present here.
The 2900 and 3900 Series routers supply -48 V power internally through AC-PoE power supplies, and each port can be set for PoE on its own. The ports power IEEE 802.3af-compliant and non-compliant devices such as Cisco IP phones, Cisco access points and some Cisco switches. Management uses the CLI, SNMP and HTTP, with UplinkFast, EtherChannel and equal-cost routing. With no physical console interface on the module, configuration is reached through a console session with the host router.
A 24-port PoE module with 23 Fast Ethernet ports is the SM-ES2-24-P EtherSwitch service module. Related modules sit in Cisco interface cards.
| Part number | SM-ES3G-16-P |
| Type | Cisco enhanced EtherSwitch service module, single-wide, Layer 2 and Layer 3 |
| Ports | 16 x 10/100/1000 RJ-45 |
| PoE | yes, IEEE 802.3af and non-compliant devices |
| PoE source | -48 V from AC-PoE power supply in the router |
| SFP slots | none |
| Maximum cable distance | 100 m (328 ft) |
| Management | CLI, SNMP, HTTP |
| Modules per router | 1 in 2911 and 2921, up to 2 in 2951 and 3925, up to 4 in 3945 |
| Compatible with | Cisco 2911, 2921, 2951, 3925 and 3945 Integrated Services Routers |