Cisco 1800 Series 1841 Integrated Services Router (Modular) without front plastic I/O. Cisco 1800 series integrated services routers (ISR) (modular) are modular routers with LAN and WAN connections that can be configured by means of interchangeable interface cards and advanced integration modules (AIMs). The modular design of the routers provides flexibility, allowing you to configure or reconfigure your router according to your needs. The Cisco 1841 router is a data-only device for desktop use.
Cisco Model Number: 1841
Cisco Part Number: 47-16987-03 Rev A0
Specifications:
| Description | Specification |
| Default memory—Uses external compact and synchronous dual inline memory module (DIMM) DRAM | Default/maximum: 32 MB/128 MB compact flash 128 MB/384 MB synchronous dynamic RAM (SDRAM) |
| Modular slots for voice support | None; Cisco 1841 does not support voice termination |
| Packet-voice-DSP-module (PVDM) slots for optional PVDM and fax DSP modules (PVDM2) | None; Cisco 1841 does not support voice termination |
| Onboard VPN encryption acceleration—IP Security (IPSec) DES, 3DES, AES 128, AES 192, and AES 256—can be enabled through a Cisco IOS Software security image | Yes |
| IP BASE Cisco IOS Software feature set by default | Yes |
Dimensions without rubber feet
(H x W x D) | 1.73 x 13.5 x 10.8 in. (4.4 x 34.3 x 27.4 cm) With rubber feet, height is 1.87 in. (4.75 cm) |
| Weight (no modules installed) | 6.1 lb. (2.77 kg) |
Input voltage, AC power supply
Frequency | 100 to 240 VAC, autoranging
47 to 63 Hz |
| Power consumption | 20 W maximum for an unloaded unit. With two WICs and an AIM installed, power consumption will be less than 50 W. |
| Console and auxiliary ports | RJ-45 connectors |
| Operating humidity | 5 to 95%, noncondensing |
| Operating temperature | 32 to 104°F (0 to 40°C) |
| Nonoperating temperature shock | –13 to 158°F (–25 to 70°C) at 9° F (5° C)/minute minimum |
| Noise level | Normal operating temperature (< 78° F or 26° C): 34 dBa
From (78° F or 26° C) through (104° F or 40° C): 37 dBa
>104° F or 40° C: 42 dBa |
