# Hardware differences: AG 4040C to CG 6060C

The following table describes the hardware differences between AG 4040C and CG 6060C boards:

Item | AG 4040C board | CG 6060C board
Board status LEDs | No board status LEDs. | Red, yellow, and green board status LEDs.
Bus support | Supports 32-bit, 33 MHz CompactPCI bus. | Supports 32-bit, 33 MHz or 66 MHz CompactPCI bus.
CAS signaling | Processed in a DSP. | Processed in the framer.
Connections | Limited to 256 simple connections on the H.110 bus. | Can simultaneously connect (simplex) to all 4096 timeslots on the H.110 bus.
CT bus timeslot connections | A connection to or from a CT bus timeslot will fail if the timeslot is already connected in the other direction. | If a connection is made to or from a CT bus timeslot, any existing connection in the other direction on that timeslot is disconnected.
DSP connections | Each DSP core has its own 64-slot TSI stream. | Four DSP cores per TSI stream. Each local TSI stream has 128 timeslots.
DSPs | 16 or 32 TMS320C549 DSPs. 100 MIPS per DSP core. Up to 3200 MIPS available for voice processing. | C5441 DSP. Each chip has four cores. 133 MIPS per DSP core. Maximum 32 cores, 4256 MIPS.
E1 impedance | Default is 120 ohms but switch selectable to 75 ohm. | Software configurable to 75 ohm, 100 ohm, 120 ohm, or high impedance.
Echo cancellation | Software echo cancellation. | Proprietary echo cancellation chip. Software echo cancellation is also available.
Ethernet | No Ethernet connectivity. | Dual 10/100Base-T Ethernet with LED speed and activity indicators on the front panel.
Hot swap | Hot swap monitor (hsmon) displays messages based on whether the board handles are flipped or if the board is physically extracted. | Hot swap monitor (hsmon) does not differentiate between physical extraction of the board and the board handles being flipped when it displays messages. For more information, refer to the Dialogic® NaturalAccess™ OAM System Developer’s Manual.
Signaling | Signaling is switchable from trunk-to-trunk and between trunks and the CT bus. | Does not support switching signaling from trunk-to-trunk or between trunks and the bus, only between trunks and DSPs.
Timeslot Interchangers (TSI) | Dual Agere T8100A. | Proprietary TSI.
Trunk interface jacks | Up to 4 RJ-48C trunk interface jacks. | Varies based on the board variant. Up to 8 RJ-48C interfaces or up to 2 Dialogic® MD1 RJ-21 interfaces.
Trunk LEDs | Red, yellow, and green LED per trunk. | Green status LED per trunk.