EXFO FTB-800 Series for FTB-1 - Manual (Page 102)

Test Setup - Test Configurator, Timer, and System
92 FTB-700G/800 Series
Modify Structure Button

Framing, available for EtherBERT test application, allows the selection
of the test framing type; otherwise the framing is set to Framed Layer 2.
See Network on page 164 for more information on frame format.

Framed Layer 1: Frame of x bytes that allows connection to any
interface that complies with 802.3 Ethernet PHY or DWDM fibre.
Available with rate up to 10G WAN.

Framed Layer 2 (default): Frames of x bytes that complies with
IEEE 802a Ethernet II standard. To set the frame length, see Frame
Size on page 117 for EtherBERT, and page 170 for RFC 2544.

Unframed without Sync
1
:
For Seed A 2 and Seed B 2 : Pattern generated by the PCS scrambler
from a specific seed. The pattern is not encoded.
For PRBS31 Unscrambled
2
: Pattern generated at the PCS layer.
The pattern is not encoded and not scrambled.
For PRBS and User Pattern: Pattern generated by the PCS
scrambler. The pattern is encoded.

Unframed with Sync
1
: Pattern of a length corresponding to the
number of bytes transmitted in 1 second.
1. Only available with optical interface up to 10G LAN.
2. These patterns are only available for 10G LAN.