Toshiba Perfecptione Installation And Maintenance Manual page 324

PERCEPTIONeh,,
Tl/DS-1
SEPTEMBER 1991
TABLE 1
TRANSMIT EQUALIZER SETTING SWITCH
SH&T MEDIUM LONG
o- 150ft
150s450ft 450 - 6.55 ft
sl
ON OFF OFF
s2 OFF ON
OFF
s3 OFF OFF
ON
s4 OFF ON
OFF
s5 OFF OFF
ON
s6 OFF ON OFF
s7 OFF OFF ON
s8
NOT USED
NOT USED NOT USED
TABLE 2-S3-NDTU SLOT POSITION
MAIN
EXPANSION
TOO TO8
CHANNELS CHANNELS
Sl
l ON
l-4
1-4
OFF
s2
l ON
5-8 5-8
OFF
s3
l ON
9- 12
9 - 12
OFF
s4
l ON
13 ew 16 13 - 16
OFF
s5
l ON
17 - 20 17-20
OFF
s6
l ON
21 -24
21 -24
OFF
4
NOTE: NOTES:
First Second
CO (Loop Start) mode OFF
OFF
CO (Ground Start) mode ON ON
DID (2-wire loop
signaling) ON
OFF
TIE line (4-wire E&M,
type 11)
OFF ON
3.12 The straps are shown as TB(x). The x in TB(x)
indicates the number. The
l
symbol indicates the
strapping option present set-up.
1) TB1 and TB2-ROM type selection:
l
l-2 3 Normal operation (64 Kbit ROM)
1 2-3 Future (256 Kbit ROM)
(See Note 1.)
2) TB3 and TB4-Operation mode:
l
l-2 3 Slave mode (normal operation)
1 2-3 Master mode (testing). (Only used in
Digital Networking Configuration.)
One PBX must be master, and the other(s)
slave(s).
3) TB5 and TBG-Loop back option:
1-2 3 Loop back (testing)
l
1 2-3 No loop back (normal operation)
4) TB7-Incoming voice pad option (see Note 2):
l
1-2 3 Through (normal operation)
1 2-3
2dB-8dB pad (reduce sidetone
or
echo)
5) TB8-Outgoing voice pad option:
l
1-2 3 Through (normal
operation)
1 2-3 2dB pad (reduce sidetone or echo)
E<
2
ach channel has two switches.
1. Must remain at this option in all U.S.
installations.
S4 - Sl 1 -Signaling type selection switches:
The NDTU PCB can be set as one of the
following four signaling modes. The selection
is done per channel basis. (Table 3 shows the
switch selection.)
2. NDTU-2A PCBs are shipped with a 2dB-
pad. Contact Toshiba Technical Support
department if additional padding is
required.
-4-