Page 858 of 910 Appendix B: I/O, maintenance, and extender cable description
553-3001-365 Standard 4.00 August 2005

NTMF94EA I/O cable

The NTMF94EA cable provides the ELAN and TLAN network interfaces
from the Voice Gateway Media Card to the customer’s network equipment.
This cable also has one DB9 serial port that provides serial connection
between the card and the customer PC or TTY. See Figure 276 on page 859.
It is important to use the mounting screw provided to secure the top of the
NTMF94EA cable 25-pair Amphenol connector to the system. The screw ties
the LAN cable shield to the Meridian 1/CS 1000 frame ground for EMC
compliance.
The NTMF94EA cable provides a factory-installed, shielded, RJ-45-to-RJ-45
coupler at the end of both the ELAN and the TLAN network interfaces. An
unshielded coupler is provided to prevent ground loops (if required). Refer to
“Prevent ground loops on connection to external customer LAN equipment”
on page 863, to determine if the unshielded coupler should be used. Both ends
of the RJ-45 ports of the cables are labeled to distinguish the TLAN network
interface and the ELAN network interface. The ports provide the connection
point to the customer’s ELAN and TLAN equipment. Use shielded CAT5
cable to connect to the customer’s equipment.
To improve EMC performance, use standard cable ties to bundle all LAN
cables as they route out of the system.
Note: To avoid damage to CAT5 cable, do not overtighten cable ties.