TBSU Two-circuit ISDN BRI Interface Unit
DK40 Installation
Strata DK40 I&M Manual Spring 1999
2-39
Refer to the Strata DK40 Programming Manual or DK Library CD-Rom for more details.
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Step 3: Install TBSU PCBs into Base KSU Cabinet
After setting the switches and jumpers as described in the preceding paragraph, the TBSU
PCB can be installed onto the TMAU2 in the Base KSU.
➤
Make sure that the power supply (TPSU16F) DC power switch is OFF.
➤
Mate the TBSU male connectors P110, P111, P112 to P10, P11 and P12 respectively
on the TMAU2. Apply firm, even pressure to ensure proper connection. See Figure
2-7 for further information.
➤
Slip the spade connected to the green/yellow wire under FG1 or FG2 on the TPSU
power supply. Tighten the screw until the spade is firmly secured.
After the TBSU is installed in the DK40 Base KSU cabinet, the status LEDs and connecting
jacks are positioned as shown in Figure 2-21
Table 2-9 TBSU Option Switches, Jumpers, and Connectors
Circuit
Option
Switch
Type
Circuit Type
Description
TE NT
TBSU
All SW 1
Pushbutton
N/A N/A
Resets firmware on all
circuits of TBSU. Drops
calls off the TBSU.
1 SW 100
Jumper
XX
Causes the circuit to
operate as TE or NT.
1SW 101
Slide
ON OFF
Switches a 100-ohm
resistor in/out of the circuit.
2SW 200
Jumper
XX
Causes the circuit to
operate as TE or NT
2SW 201
Slide
ON OFF
Switches a 100-ohm
resistor in/out of the circuit.
1J1
8-pin Modular
Connector (RJ45) X X
Connects the TBSU Cct 1
to the Network Provider
Interface
2J2
8-pin Modular
Connector (RJ45) X X
Connects the TBSU Cct 2
to the Network Provider
Interface
All J3
6-pin Modular
Connector (RJ11) N/A N/A
Connects the TBSU to a
terminal or a PC to monitor
D-Channel data.
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