Toshiba Strata DK24 Installation And Maintenance Manual page 137

Refer to Section 200-096-208 for external
option installation procedures.
10.12 Remote Maintenance Modem Unit (IMDU)
Installation. Install the IMDU on the PIOU or
PIOUS PCB in accordance with the following steps:
1) Remove the PCB from its protective packag-
ing.
2) Set the SW2 baud rate switch on the front
panel to 300 or 1200, as appropriate, after the
PCB has been installed in the KSU (in for 300
bps, out for 1200 bps).
3) Set SW3 to MODEM position for IMDU opera-
tion.
4) Set the P13 jumper plug on the PIOU to the
BELL position; or, cut the W4 jumper on the
PIOUS for BELL operation.
50-PIN AMPHENOL CONNECTOR (FEMALE)
BACKPLANE CONNECTOR
FIGURE 6-11
PIOU CONTROLS, INDICATORS, AND INTERFACE CONNECTORS
5) Mate IMDU connectors J1, J2, and J3 with
PIOU or PIOUS connectors P1, P2, and P3
(refer to Figure 6-13).
NOTE:
PIOU or PIOUS connectors P1, P2, and P3
are positioned to allow installation of the IMDU
only in the proper position.
6) Refer to Programming Procedures, Section
400-096-300, and turn LED 14 ON in Pro-
gram 77-1 to enable IMDU operation.
NOTE:
The IMDU default station intercom number is
19.
7) Apply firm, even pressure to the IMDU to
ensure proper mating of connectors.
NOTE:
Refer to Remote Administration & Mainte-
nance Procedures, Section 400-096-600, for
CD4
SW2
LED
P11
VR1
BELL B
P10
B
P13
P12
P3
P2
6-23
INSTALLATION-PCB
SECTION 400-096-206
SEPTEMBER 1992
SMDR
TTY
J3
SW1
SPO 1200
300
TTY
SW4
SPI
SW3
MODEM
P1