The card is an inseparable part of the extension module.
- Contains the proprietary interface for the communication with the SWITCH card.
It is only installed in the extension module, always into the positions with the 0 HW address.
- The SWITCH board connection interface
- Interface type – proprietary
- Connection – RJ-45 (8/8)
- Maximum connection length between SWITCH card and extension modul CPU card is 160 cm (wiring supplied as a part of the extender package)
- Total interface throughput
- between SWITCH card and extension module CPU card is available 31 channels (and 1 for signaling)
- total extension module throughput is 88 calls