Technical Description; Power Requirements; Environmental Specifications; Pad Switching - Northern Telecom NT5K17 Description

1-4 NT5K17 Direct Dialing Inward Trunk Card

Technical description

Power requirements

Environmental specifications

PAD switching

553-3001-173 UK Trunk cards description
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The technical details of the NT5K17 Direct Dialling Inward trunk card are
outlined below.
Table 1-1 lists the power requirements for the NT5K17 DDI trunk card.
Table 1-1
NT5K17 power requirements
Vo lt age
+ 15. 0 V dc
- 15 V dc
+8. 5 V dc
- 48 V dc
+ 5.0 V dc
Table 1-2 lists the environmental specifications for the NT5K17 DDI card.
Table 1-2
NT5K17 Environmental specifications
Par amet er
Oper at i ng
t emper at ur e
Oper at i ng hum i di ty
St or age t emper at ur e
Loss values for the NT5K17 DDI trunk card are as follows:
Lo ss
PAD out
I dle cu rr ent
195 ma
240 ma
85 ma
50 ma
195 ma
Sp ecif i cat io ns
0 to 50 degr ees C , ambi ent
5 to 95 % RH ( non- c ondensi ng)
- 50 t o + 70 degr ees C
An alo g- t o - Di gi t al
- 4 d B
Ac ti ve cur ren t
195 ma
215 ma
85 ma
500 ma
175 ma
Di gi t al- t o - An alo g
- 3 d B