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QPC550 Direct Inward Dial Trunk card
Table 52
QPC550 vintages A and B—real/complex balance impedance selection
Device
location
designation
F31
F24
F16
F11
Table 53
QPC550 vintage A—600/900 Ohm impedance selection
Device
Device
location
designation
G29(a)
S3.0
G29(b)
S3.1
G8(a)
S3.2
G8(b)
S3.3
553-3001-211
Standard 3.00
Option settings
Tables 52 through 56 give the option settings for the QPC550 DID Trunk
card.
Device
Switch
number
S4.0
S4.1
S4.2
S4.3
Unit
number
0
1
2
3
August 2005
Unit
number
1
0
1
1
1
2
1
3
Impedance
(ohms)
1
600
off
900
on
600
off
900
on
600
off
900
on
600
off
900
on
Impedance type
Real
on
on
on
on
Switch number
2
3
4
5
on
on
off
off
off
off
on
on
on
on
off
off
off
off
on
on
on
on
off
off
off
off
on
on
on
on
off
off
off
off
on
on
Complex
off
off
off
off
6
7
8
on
on
off
off
off
on
on
on
off
off
off
on
on
on
off
off
off
on
on
on
off
off
off
on
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