Nortel Meridian 1 Option 11C Planning And Installation Manual page 229

Installing and connecting SDI and ethernet ports Page 229 of 408
Note: An Ethernet connection is not available on systems equipped with
an NTDK26 Backwards Compatible Daughterboard on the
NDK20EA SSC card (usually two-cabinet systems interconnected with
copper cable).
J7 Jumper plug
The J7 jumper plug must be in place on the NDK20EA SSC card for the
Ethernet function to operate. The jumper plug is present when the NDK20EA
SSC card is shipped. However, it must be removed to accommodate the
NTDK26 Backwards Compatible Daughterboard used in multi-cabinet
systems that are not interconnected with fiber optic cable.
When a multi-cabinet system is upgraded from copper to fiber optic cable
inter-cabinet connections, the NTDK26 Backwards Compatible
Daughterboard must be replaced with fiber expansion daughterboards. The J7
jumper plug must be installed at the same time if the Ethernet capability is
required. See Figure 92 on page 230.
Option 11C Planning and Installation Guide