Nortel Networks 553-3001-211 manual Way tie Oaid 600 or

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Table 33

NT8D14 vintages BA/BB trunk types—termination impedance and balance network (Part 2 of 2)

	Terminating	Balance network for loop lengths (Note 2)
Trunk types	impedance	Zero–915 m	915–1524 m	> 1524 m
	(Note 1)	(zero–3000 ft)	(3000–5000 ft)	(> 5000 ft)
2-way tie (OAID)	600 or 900	600 ohms	3COM1	3COM2
	ohms
DID (loop < 600	600 or 900	600 ohms	3COM1	3COM2
ohms)	ohms
DID (loop Š 600	600 or 900	600 ohms	N/A	3COM2
ohms)	ohms
RAN: continuous	600 or 900	600 or 900 ohms	N/A	N/A
operation mode	ohms
Paging	600 ohms	600 ohms	N/A	N/A

Note 1: The terminating impedance of each trunk unit is software selectable in LD 14 and should match the nominal impedance of the connecting equipment.

Note 2: The balance network of each trunk unit is software selectable between resistive 600 or 900 ohms or 3COM and is jumper selectable between 3COM1 and 3COM2.

553-3001-211 Standard 2.00 September 2004