Toshiba Strata CIX40 R5.2 Software - R1 ~ R3 Hardware Installation And Maintenance Manual page 50

CIX40 Installation
Detailed PCB Installation
Step 5: Install the GCDU2 (DKT and Loop Start
Interface)
The GCDU2 PCB adds an additional 3 CO lines, 3 Caller ID units, and 8 digital telephone circuits
with a single PCB. It attaches to the GMAU2/3/4 motherboard. With the GCDU2 installed, the
CIX40 supports up to 16 digital telephones (DKTs), 7 CO lines with Caller ID (GMAU3/4) or 6 CO
lines with Caller ID (GMAU2). The GCDU2 does not require a license.
CO Line connectors on earlier versions of the GCDU2 are labeled CO4, CO5 and CO6. Later
versions are physically and electrically the same. Only the CO Line connector labels are changed
to Cct 1, Cct 2, and Cct 3. Refer to
Refer to
1. Carefully place the GCDU2 pins over the GMAU2/3/4 connectors (see
1-23). Press down on the PCB to secure the pins to the connectors (see
Figure 1-23 GCDU2 PCB
1-40
Figure 1-32 on Page 1-51
Table 1-23, "CO Line Circuit Connector Labels" on Page
and Figure 1-32 on Page 1-52
Strata CIX40 R3 Installation & Maintenance
for CO Line circuit connections.
Figure 1-11 and
Table 1-17).
CO4 / Cct 1
CO5 / Cct 2
CO6 / Cct 3
1-52.
Figure
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