Specific Switch Settings - Toshiba Perfecptione Installation And Maintenance Manual

PERCEPTIONeb,,
T-l/IX-l
SEPTEMBER1991
---------
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SUBASSEMBLY PCB
FlGURE4-NDTU PRINTED CIRCUITBOARD LAYOUT
3.10 Specific Switch Settings
3.11 The initial (normal) setting of the switches is
shown by a
l
symbol. The upper case "S" indi-
cates the switch, and the lower case "s" indicates
the function setting on the switch.
1) Sl-Mode selection switch:
sl : l
ON-Robbed bit signaling (normal)
OFF-Future operation
s2:
l
ON-Zero Code Suppression (ZCS)
OFF-Binary Eight Zero Suppression
(B8ZS)
NOTE:
Must check and match other side.
s3: ON-Future operation
l
OFF-Normal operation
s4:
Not used
2) S2-Transmit Equalizer setting switch (dis-
tancefrom PERCEPTIONe&ex to another PBX
if CSWDSU is not used). (See Table 1.)
IMPORTANT NOTE:
The maximum distance between
PERCEPTIONHex and the CSWDSU is 30
feet. Toshiba provides the proper cable for
this connection with each NDTU PCB. Its
installation is required forproper operation.
3) S3-NDTU slot position:
The NDTU PCB can be positioned in slots TOO
and
T08, in the main or expansion cabinet,
respectively. This switch turns on the digital
trunks in increments of 4. To use all 24 digital
trunks, S3-(sl w s6) must be ON. To activate
12 digital trunks, S3-(sl M s3) must be ON.
(See Table 2.)
ON-Digital Trunk active
OFF-Digital Trunk disabled
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