About Cisco 1100 Series Integrated Service Routers
The Cisco 1100 series Integrated Services Routers are the next generation, IOS XE based, multi core, branch routers. They are available in both fixed and modular form factors. The Cisco 1100 series is best suited for small and midsize businesses, enterprise branches and as customer premises equipment in managed services environments.
Feature |
C111x-8P |
C111x-4P |
C1101-4PLTEPWx |
C1101-4P |
---|---|---|---|---|
Front panel switch ports |
8 |
4 |
4 |
4 |
WAN ports |
2 (1 Combo RJ-45/SFP + 1 RJ-45) |
2 (1 Combo RJ-45/SFP + 1 RJ-45) |
1 RJ-45 |
1 RJ-45 |
Console port |
Serial RJ-45, Micro USB |
Serial RJ-45, Micro USB |
Micro USB |
Micro USB |
(Optional) POE |
4PoE/2PoE+ |
2 POE/1 POE+ |
None |
None |
(Optional)WLAN |
802.11ac WAVE 2 |
802.11ac WAVE 2 |
802.11ac WAVE 2 (C1101-4PLTEPWx) |
None |
LTE (optional) |
4G LTE-Advanced (CAT6) with carrier aggregation |
4G LTE-Advanced (CAT6) with carrier aggregation |
4G pluggable LTE (CAT 4) and pluggable LTE Advanced (CAT 6) with carrier aggregation |
None |
DSL (optional) |
G.FAST, VDSL2 and ADSL2/2+ |
VDSL2 and ADSL2/2+ |
None |
None |
![]() Note |
Multiple variations of the models are available based on LTE/WLAN/DSL/Ethernet options on the routers. |
For more information on the features and specifications of Cisco 1100 Series Integrated Services Routers (ISRs), refer to the Cisco 1000 Series Integrated Services Routers Solution Overview document and Cisco 1000 Series Integrated Services Routers datasheet.
Chassis Views
This section contains front and back panel views of the Cisco 1100 Series ISR-showing locations of the power and signal interfaces, interface slots, status indicators, and chassis identification labels.

1 |
Status |
2 |
VPN |
3 |
WiFi |
4 |
GPS |
5 |
LTE Signal Intensity |
6 |
LTE Data/SIM |
7 |
Illuminated Cisco Logo |

1 |
LTE Antennas – Main and Diversity |
2 |
Ethernet Switch |
3 |
GPS Connection |
4 |
CLEI Label |
5 |
Serial Number |
6 |
Grounding |
7 |
Reset Button |
8 |
Power Switch |
9 |
4-pin Power Connector |
10 |
GE 0/0/1 |
11 |
GE 0/0/0 - RJ45 |
12 |
GE 0/0/0 - SFP |
13 |
USB3.0 |
14 |
Lower slot0 Upper slot1 |
15 |
LTE Provisioning Port |
16 |
RJ45 / Micro USB Console |
17 |
DSL |
18 |
Kensington Lock Slot |
19 |
Product Identification Number (PID) |
![]() Note |
For more information on the Reset Button, refer to the Reset Overview section in the ISR 1000 Series Integrated Services Routers. |

1 |
Non-illuminated Cisco Logo |

1 |
Kensington Lock Slot |
2 |
Grounding |
3 |
Power Switch |
4 |
4-pin Power Connector |
5 |
Reset Button |
6 |
LAN: 0-4 |
7 |
GE WAN |
8 |
Micro USB Console |
9 |
USB3.0 |

1 |
Non-illuminated Cisco logo |

1 |
Power Switch |
2 |
4-pin Power Connector |
3 |
Reset Button |
4 |
LAN:0-4 |
5 |
GE WAN |
6 |
Micro-USB console Port |
7 |
USB 3.0 |
8 |
Pluggable |
9 |
Grounding |
10 |
Kensington Lock Slot |
LED Indicators
The following figures and table summarizes the LED indicators that are located in the bezel or chassis of the C111x series.

1 |
Status |
2 |
VPN |
3 |
WLAN |
4 |
GPS |
5 |
LTE RSSI/Mode |
6 |
LTE DATA/SIM |
7 |
Cisco Logo |

1 |
GE WAN Ports: 0-7 (0,2,4,6 at the top and 1,3,5,7 at the bottom) |
2 |
PoE LED |
3 |
GE1 LED |
4 |
GE0 LED |
5 |
USB LED |
6 |
RJ-45 Console LED |
7 |
USB Console |
8 |
Micro USB Console LED |
9 |
CD LED |
10 |
DSL |
11 |
DATA LED |
The following table summarizes the LED indicators that are located in the bezel or chassis of the C111x series.
Port |
LED Color |
Description |
Control Source |
---|---|---|---|
Cisco Logo |
Blue |
Illuminated Cisco logo. Indicates router power is good. |
Bezel side |
STATUS (System Status) |
Green and Amber |
Steady Green - System operates normally. |
Bezel side. All models. |
Off—System is not out of reset or BIOS image is not loadable. |
|||
Blinking Amber — BIOS/Rommon is booting. |
|||
Steady Amber — BIOS/Rommon has completed booting, and the system is at the Rommon prompt or booting the platform software. |
|||
VPN OK |
Green |
Off—No tunnel. |
Bezel side |
Steady On— At least one tunnel is up. |
|||
LTE RSSI/Mode |
Green and Amber |
No LEDs On—No Service |
Bezel Side |
1 LED On— RSSI is under -100dBm. |
|||
2 LEDs On— Low RSSI, -99dbm <> -90dBm. |
|||
3 LEDs On— Medium RSSI -89dBm <> -70dBm. |
|||
4 LEDs On— High RSSI, > -69dBm. |
|||
Green— LTE |
|||
Amber— 3G |
|||
GPS |
Green |
On - GPS coordinates are acquired. Off - GPS is disabled, GPS is enabled without GPS mode and NMEA configuration, or GPS is acquiring. |
Bezel Side |
Green— Standalone GPS |
|||
Off— GPS not configured |
|||
On— GPS configured |
|||
WLAN |
Green, Red, and Amber |
Green— Normal operating condition with at least one wireless client association. |
Bezel side |
Red—Ethernet link is not operational or Ethernet failure. |
|||
Amber—Software upgrade is in progress. |
|||
Ethernet Switch GE LAN Ports, Non-PoE |
Green |
Off— No link |
I/O side |
Steady On— link |
|||
Blink— TXD/RXD data |
|||
Ethernet Switch GE LAN Ports, with PoE |
Green and Amber |
Off— No link, no device powered, PD denied power, power delivery fault PoE administratively disabled. |
I/O side |
Green Steady On— link; if PoE device, power is enabled. |
|||
Green Blink— TXD/RXD data |
|||
Amber - PoE Fault |
|||
GE WAN Ports |
Green |
Off— No link |
I/O side |
Steady On— link |
|||
Blink— TXD/RXD data |
|||
DSL CD |
Green |
Off— Shut |
I/O Side |
Green Blink— Training, or no shut and cable disconnected. |
|||
Green Steady On— Trained |
|||
PoE OK |
Green |
Green Steady On— -53.5V PoE power supply connected and all powered port operating normally. |
I/O Side |
Off — No -53.5V PoE power supply connected to router. |
|||
DSL Data |
Green |
Off— No Data Activity |
I/O Side |
Green Blink— TX/RX Data |
|||
Console/AUX |
Green and Amber |
Green On— Console enabled. |
I/O side |
Amber On— AUX enabled. |
|||
USB Console |
Green |
Off— No USB device discovered. |
I/O side |
On— USB device discovered. |
|||
USB |
Green |
Off: No USB device discovered. |
I/O Side |
On: USB device discovered. |
LED |
Color |
Description |
Control Source |
---|---|---|---|
Power |
Green+Amber |
System Power Status Off: No Power Green Steady On: Normal operation Green Blink: Boot up phase or in ROMMON mode Amber Steady on Or Blink: Some issues with the system. |
I/O |
VPN OK |
Green |
VPN Status Off: No tunnel Steady on:At least one tunnel is up |
I/O |
Ethernet Switch GE LAN Ports |
Green |
Link Activity Off: No link Steady on: Link Blink: TXD/RXD Data |
I/O |
GE WAN Ports |
Green |
Link Activity Off: No link Steady on: Link Blink: TXD/RXD Data |
I/O |
LTE DATA/SIM (C1101-4PLTEPWz C1101-4PLTEP/C1101-4PLTEPWx) |
Green and Amber |
Single LTE Modem (one modem with SIM switch-over capability). Off: Modem not up or modem up and no SIM. Amber Steady On: Modem up, SIM installed but not active. Green Blink: LTE data activity. |
Bezel Side |
WLAN (C1101-4PLTEPWx) |
3-color LED: Green, Red and Amber |
WLAN Functions |
I/O |
USB Console |
Green |
USB Console Status OFF: USB console is not active. ON: USB console is active. |
I/O |
USB 3.0 |
Green |
USB 3.0 Status OFF: No USB device is connected. ON: USB device is commected. |
I/O |
Reset Button
The actuation of the Reset button is only recognized during ROMMON boot, that is, as the router comes to the ROMMON prompt.
The Reset button does not require much force to be actuated. The Reset button should be actuated only with a small implement such as the tip of a pen or a paper clip. When the Reset button is pressed at startup, the system LED turns green.
For more information, see the "Reset Overview" section of the Cisco 1100 Software Configuration Guide.
Power Supply
Cisco 111x Series ISRs support PoE and PoE+ power to endpoints. The product power specifications are as follows:
-
AC input voltage: Universal 100 to 240 VAC
-
Frequency: 50 to 60 Hz
-
Maximum output power: Up to 66W for non-PoE supply and up to 125W for PoE supply
-
Optional PoE and PoE+
-
Output voltage: +12VDC for system power and -53.5VDC for PoE power
Slots and Interfaces
About Slots, Subslots, and Port Numbering
The Cisco 1100 series designates its interfaces using a 3-tuple notation that lists the slot, sub slot and port in the format slot/sub-slot/port. The slot number is reserved for the mother board, which is "0". Each interface type is allocated a sub slot and the port number is a unique port on the interface.
Subslot |
Interface Type |
---|---|
0 |
Ethernet LAN |
1 |
Ethernet WAN |
2 |
LTE |
3 |
DSL |
4 |
WIFI |
Specifications of Cisco 1100 Series Integrated Services Routers
For specifications on the Cisco 1100 Series ISRs, refer to the Cisco 1100 Series ISR Specifications document.