Bell System Practices Plant 33 ASR Manual page 14

SECTION 580-301-200
R II
TP3
TP 2
TPI
SCREW
SWITCH D
Fig. 7 -
Data Set 108A-Type, Locations of Test Points and Screw Switches
TABLE A
DATA SET 108A-TYPE
SCREW
SWITCH
D SETTINGS
DESENSITIZING PAD STRAPPING
FOR REDUCING GAIN OF THE
RECEIVE BUFFER AMPLIFIER
LOOP FACILITY
DB
SCREW SWITCH D
WITH 2300 HZ
REDUCTION
LOSSES
IDBI
IN GAIN
CLOSED
OPEN
'0 to 3 8
1-2,
3-4
3.1 to 7 4 1-2 3-4
7.1 and Greater 0 3-4 1-2
Page 14
TABLE 8
TYPICAL LOOP IMPEDANCE
TYPICAL LOOP IMPEDANCE
TYPICAL LOOP
FACILITY
2125 HZ
(DATA SET l0SA-TYPEl
26 NL (HC) 650
24 NL (HC) 500
22 NL (HC) 400
19 NL (HC) 280
16 NL (HC) 200
26 H88 (HC) 1300
24 H88 (HC) 1260
22 H88 (HC) 1250
19 H88 (HC) 1240
16 H88 (HC) 1340
NL - Non loaded (HC) - High Capacity
(
(
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