Meridian Nortel 1 Option 11C Technical Reference Manual page 441

NTDK22 Fiber Expansion Daughterboard
The NTDK22 Fiber Expansion Daughterboard is used when the expansion
cabinet is within 10 m (33 ft) of the main cabinet. It connects to one
A0632902 Fiber Optic cable (multimode).
One of these boards is required for each expansion cabinet located within 10
m (33 ft) of the main cabinet.
NTDK24 Fiber Expansion Daughterboard
The NTDK24 Fiber Expansion Daughterboard is used when the expansion
cabinet is up to 3 km (1.8 mi) of the main cabinet. It connects to one glass
multimode fiber optic cable which is dedicated to the Option 11C system.
One of these boards is required for each expansion cabinet located up to 3 km
(1.8 mi) of the main cabinet. The NTDK24 Fiber Expansion Daughterboard
works in conjunction with an NTDK25 Fiber Receiver card in the expansion
cabinet.
Note: The NTDK24 supports only Multimode glass fiber optic cable.
NTDK79 Fiber Expansion Daughterboard
The NTDK79 Fiber Expansion Daughterboard has the same features as the
NTDK24 except that:
• it requires Single Mode glass fiber optic cable
• it works in conjunction with an NTDK80 Fiber Receiver card in the
expansion cabinet instead of an NTDK25 card.
Note: The NTDK79 supports only Single Mode glass fiber optic cable.
NTDK84 Fiber Expansion Daughterboard
The NTDK84 Fiber Expansion Daughterboard has the same features as the
NTDK22 except that it can interface with two expansion cabinets.
NTDK85 Fiber Expansion Daughterboard
The NTDK85 Fiber Expansion Daughterboard has the same features as the
NTDK24 except that it can interface with two expansion cabinets.
Cable specifications and interfaces
Option 11C and 11C Mini
Page 441 of 544
Technical Reference Guide