Quick tech specs
- Speed
- RS-232 x 16
- 1921 4-pair
- 1921 T1
- 28XX
- 38XX
- 39XX ES24
- Expansion module
- for Cisco 18XX
- 1921 ADSL2+
- 19XX
- 29XX
- 39XX
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.