DLP-505
: Detailed Level Procedures 363-206-305
Page 2 of 6 Issue 3, June 2000
DDM-2000 F
IBER
R
EACH
N
ARROWBAND
S
HELF
!
CAUTION:
Take care to avoid damaging the LEDs that protrude through the opening
in the faceplate of the
FHB2 DSXBIU
circuit pack.
Determine from office records the length of the DS1 cabling between the
Narrowband shelf and the DSX-1 cross-connect point.
6.
NOTE:
Switch 2, sections 2 through 4 (
S2-2, S2-3, S2-4
), are set according to
the length of DS1 cabling between the Narrowband shelf and the DSX-1
cross-connection. Switch 2, section 1 (
S2-1
), is set for the type of line
coding (B8ZS or AMI) required of the DS1 signal.
NOTE:
To set switch to ON, depress rocker or slide switch toward side labeled
ON
in the figure. To set switch to OFF, depress rocker or slide switch
toward side labeled
OFF
.
Refer to Table A and set Equalization option switches.
7. Refer to Table B and set the line code option switch..
8. Install unit in
DSXBIU
slot.
9. Wait 30 seconds for initialization. The
FAIL
and the
NE
light should be lit.
Ta bl e A –
FHB2 DSXBIU
Cable
Equalization
Settings
Distance to DSX-1 (Feet)
Switch S2 Settings
S2-2 S2-3 S2-4
0 to 133 OFF OFF OFF
>133 to 267 OFF OFF ON
>267 to 400 OFF ON OFF
Ta bl e B –
FHB2 DSXBIU
Line Code Settings
Line Code
Format
Switch S2 Setting
S2-1
B8ZS ON
AMI/ZCS OFF
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