Cisco Cisco 1900 2900 3900 Series 8-Port Gigabit Ethernet HS-WIC with PoE Release Notes

 shows cables and accessories supported in Cisco 4G LTE WWAN EHWICs.

For ISRs with EHWIC-4G-LTE-V and C819(H)G-4G-V-K/9, the use of Cisco IOS Release 15.2(4)M3 
or later requires LTE modem firmware 3.5.10.6. 

Do not use Cisco IOS Release 15.2(4)M3 or later on ISRs with LTE eHWICs until the LTE modem is 
upgraded.

Cisco IOS Release 15.2(4)M3 or later includes Verizon Wireless LTE modem drivers that operate with 
the latest MC7750 LTE modem firmware. Due to backward compatibility issues with the existing LTE 
modem firmware (1.0.9.3), Cisco IOS Release 15.2(4)M3 or later should be used only after upgrading 
the existing LTE modem firmware to the Release 3.5.10.6, or with the new EHWIC-4G-LTE-V and 
C819(H)G-4G-V-K/9 units with firmware 3.5.10.6 factory loaded. 

Check the LTE modem firmware using the Cisco IOS command show cellular 0/x/0 hardware (for 
EHWIC-4G-LTE-V, with x being the EHWIC slot number) or the show cellular 0 hardware command 
(for C819(H)G-4G-V).

The latest certified firmware version for your carrier having Cisco IOS compatibility is available at 

.

The EHWICs will be supported only in the following ISR G2 platforms that provide EHWIC slots:

Cisco 819 Series ISRs

Cisco 1900 Series ISRs

Cisco 2900 Series ISRs

Cisco 3900 Series ISRs

4G-CAB-LMR240-25

25-foot low-loss LMR-240 cable

4G-CAB-LMR240-50

50-foot low-loss LMR-240 cable

4G-CAB-LMR240-75

75-foot low-loss LMR-240 cable

4G-CAB-LMR240-25N

Non-plenum rated 25-foot outdoor cable

4G-CAB-ULL-20

20-foot cable with Threaded Neill–Concelman (TNC) connectors

4G-CAB-ULL-50

50-foot cable with TNC connectors

CAB-L400-20-TNC-N

20-foot cable with N-type and TNC connectors

CAB-L400-50-TNC-N

50-foot cable with N-type and TNC connectors

CAB-L400-20-N-N

20-foot cable with N-type connectors on both ends

4G-AE010-R

Extension base with 10-foot cable

4G-AE015-R

Extension base with 15-foot cable