Nortel Meridian 1 option 11C Planning And Installation Manual page 71

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The NTAK09 supports two optional daughterboards, the NTAK20 clock
controller and the NTAK93 D-channel interface. The NTBK50 will support
the NTAK20 and either the NTBK51 DDCH daughterboard or the NTAK93
D channel interface.
The NTRB21 supports one optional daughterboard, the NTAK20 clock
controller, and incorporates the functionality of the NTBK50 or NTSK93
daughterboards.
To prepare the plan, list the total number of the following circuit cards
required for the installation:
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NTDK20 SSC
NTAK02 SDI/DCH
NTAK03 TDS/DTR
NTAK09 1.5 Mb DTI/PRI
NTRB21
NTBK22 MISP
NT6D70 SILC
Meridian Mail
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NTDK23 10 m Fiber receiver
NTDK25 or NTDK80
3 km Fiber receiver
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NT8D02 Digital line card
NT8D09 Message waiting
NT8D14 Universal Trunk
NT8D16 Digitone Receiver
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