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DN0610789
© Nokia Corporation
13 (14)
Maximum transfer unit 2016 bytes
Any frame larger than the maximum transfer unit (MTU) value will be rejected.
The frame size includes destination address, source address, type, length, data
and CRC. Standard Ethernet frame maximum length is 1518 bytes (destination
address 6 bytes + source address 6 bytes + type 2 bytes + data 1500 bytes +
CRC 4 bytes).
Cable UTP CAT5, maximum cable length
100m
3.3 WAN
HDLC RFC1662
FCS 16 bits
Idle signal flag 7E (0111 1110)
Idle flags are sent continously to WAN when there are no packets in the receive
buffer. Two idle flags are sent between every HDLC packet.
Line speed n x 64 kbps (n = 1…32)
3.4 Environmental
Operation: EN 300 019, class 3.2
Transport: EN 300 019, class 2.3
Climatic
Storage: EN 300 019, class 1.2
EMC: EN 300 386
Power consumption: 800 mW
3.5 Modem requirements
The ET-adapter can be installed to the follwing modems. The modem adapter
type is displayed as V.35 or Ethernet E66210.32 depending on the DNT modem
software version.