Nortel Meridian 1 Option 11C Planning And Installation Manual page 25

Figure 10
Daughterboards and Security Device on the NTDK20 SSC card
Security Device
Fiber Expansion
Daughterboard
in top connector (Fiber 1)
Fiber Expansion
in bottom connector (Fiber 2)
NTAK02 SDI/DCH card
This optional SDI/DCH card provides four SDI ports for various applications.
NTAK03 TDS/DTR card
Provides tone transmission and detection plus two SDI ports.
NT5K20 and NT5K48 Tone detector Cards
Provide DTMF or DT detection.
Software Daughterboard
Daughterboard
Equipment identification Page 25 of 408
Option 11C Planning and Installation Guide