Quick tech specs
- Expansion module
- for Cisco 18XX, 1921 4-pair, 1921 ADSL2+, 1921 T1, 19XX, 28XX, 29XX, 38XX, 39XX, 39XX ES24
- RS-232 x 16
Know your gear
The 16-port asynchronous HWIC (HWIC-16A) provides 16 asynchronous RS-232 interfaces in DTE format, at data rates of up to 230.4 kbps.