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3.2 Central Boards

3.2.1 CBPC

Introduction

The CBPC (Central Board Point and Com) is the central board for the OfficePoint and OfficeCom models. Note that the fully equipped OfficeCom CBPC model (S30810-Q2932-A201) can be used in both systems, while the underequipped model (S30810-Q2932-B201) works in OfficePoint only.

Functions

Supplies audible tones (signalling interface unit)
Provides PCM highway switching and conference circuit
Provides system timing (real-time clock with NC battery)
 
Disconnecting the battery buffer on the CBPC by unplugging the jumper is necessary only for testing (module test at the factory). Disconnection does not necessarily delete the customer database (CDB). To delete the CDB, use the reset switch.  

Interfaces

Digital UP0/E subscriber lines
Analog a/b (T/R) subscriber lines
Control for slots 2 and 3
CGMC/CGUM (Clock Generator Modul Combined) for OfficeCom only (not for U.S.)
External music on hold (through MPPI or EXM [not for U.S] EXMNA [for U.S. only] module)
Options bus (O-bus)
V.24 (RS-232) (through V.24 module)
Flash memory card (application processor software)
Integrated modem card (IMOD)

Switches and Indicators

Reset switch
LEDs

CBPC Interfaces

Figure 3-1 CBPC Interfaces-OfficeCom/OfficePoint (S30810-Q2932-A201/B201)

Figure 3-2 IMOD and FMC - Dual-Board Connector

Note: The underequipped CBPC board for the OfficePoint does not include the CGMC interface (X14) or the LEDs (H9 to H16) for the OfficeCom expansion board slots.

Table 3-3 LED Indicators on the CBPC

LED 
(Green) 
LED 
(Red) 
Assignment 
H 18 
 
IMOD LED 
H 17 
 
RUN LED 
H 16 
H 15 
Board in slot 9 (OfficeCom only) 
H 14 
H 13 
Board in slot 8 (OfficeCom only) 
H 12 
H 11 
Board in slot 7 (OfficeCom only) 
H 10 
H 9 
Board in slot 6 (OfficeCom only) 
H8 
H7 
Board in slot 5  
H6 
H5 
Board in slot 4  
H4 
H3 
Analog ports (virtual slot 3) 
H2 
H1 
Digital UP0/E ports (virtual slot 2) 
For slot assignments, see Figure 4-49 and Figure 4-52

See Section 12.3.1 and Section 12.3.2.2 for an explanation of LED signaling.

CBPC Contact Assignments (OfficeCom and OfficePoint; Not for U.S.)

Table 3-4 Contact Assignments (OfficeCom and OfficePoint; Not for U.S.)

 
Slot 2 
Slot 3 
-- 
Pin 
Connector X1  
Connector X2 
Connector X3 
Connector X4 
UP0/E port 1b 
UP0/E port 5b 
a/b port 1a 
GND 
UP0/E port 1a 
UP0/E port 5a 
a/b port 1b 
Not assigned 
UP0/E port 2b 
UP0/E port 6b 
a/b port 2a 
Not assigned 
UP0/E port 2a 
UP0/E port 6a 
a/b port 2b 
EXMCL 
(512 kHz data cycle) 
UP0/E port 3b 
UP0/E port 7b 
a/b port 3a 
EXMDIR 
(8 kHz frame cycle) 
UP0/E port 3a 
UP0/E port 7a 
a/b port 3b 
EXMRES 
(high-active reset) 
UP0/E port 4b 
UP0/E port 8b 
a/b port 4a 
EXMD 
(data line) 
UP0/E port 4a 
UP0/E port 8a 
a/b port 4b 
EXMDET 
(detect signal 
 
 
 
+5V 
10 
 
 
 
Not assigned 

CBPC Interface Assignments (OfficeCom and OfficePoint; for U.S. Only)

Table 3-5 Interface Assignments (OfficeCom and OfficePoint; for U.S. Only)

Pin 
Connector X1 
(Optiset) 
Connector X2 
(Optiset) 
Connector X3 
(analog) 
Connector X4 
(to EXMNA Module) 
R1 - Port 1 
 
R1 - Port 1 
GND 
T1 - Port 1 
 
T1 - Port 1 
Not assigned 
R2 - Port 2 
 
R2 - Port 2 
Not assigned 
T2 - Port 2 
 
T2 - Port 2 
EXMCL 
R3 - Port 3 
 
R3 - Port 3 
EXMDIR 
T3 - Port 3 
 
T3 - Port 3 
HRES 
R4 - Port 4 
 
R4 - Port 4 
EXMD 
T4 - Port 4 
 
T4 - Port 4 
EXMDET 
 
R5 - Port 5 
 
+5 V 
10 
 
T5 - Port 5 
 
Not assigned 
11 
 
R6 - Port 6 
 
 
12 
 
T6 - Port 6 
 
 
13 
 
R7 - Port 7 
 
 
14 
 
T7 - Port 7 
 
 
15 
 
R8 - Port 8 
 
 
16 
 
T8 - Port 8 
 
 

CBPC Default Numbering Plan (OfficeCom and OfficePoint)

Table 3-6 Numbering plan (OfficeCom and OfficePoint)

OfficeCom 
OfficePoint 
Stn. no. 
 
Com/Point 
 
Int. stn. no. 
 
Com/Point 
 
DID no. 
 
Com/Point 
 
Port numbering system 
Com/Point 
Type 
 
CBPC 
 
Digital 
UP0/E 
100/11 
100/11 
100/11 
100/11 
UP0/E
 
 
 
 
UP0/E primary 
101/12 
101/12 
101/12 
101/12 
UP0/E
102/13 
102/13 
102/13 
102/13 
UP0/E
103/14 
103/14 
103/14 
103/14 
UP0/E
104/15 
104/15 
104/15 
104/15 
UP0/E
105/16 
105/16 
105/16 
105/16 
UP0/E
106/17 
106/17 
106/17 
106/17 
UP0/E
107/18 
107/18 
107/18 
107/18 
UP0/E
500/51 
500/51 
500/51 
500/51 
UP0/E
 
 
 
 
UP0/E secondary 
501/52 
501/52 
501/52 
501/52 
UP0/E
502/53 
502/53 
502/53 
502/53 
UP0/E
503/54 
503/54 
503/54 
503/54 
UP0/E
504/55 
504/55 
504/55 
504/55 
UP0/E
505/56 
505/56 
505/56 
505/56 
UP0/E
506/57 
506/57 
506/57 
506/57 
UP0/E
507/58 
507/58 
507/58 
507/58 
UP0/E
Analog 
a/b  
(T/R) 
108/19 
108/19 
108/19 
108/19 
a/b 
 
109/20 
109/20 
109/20 
109/20 
a/b 
110/21 
110/21 
110/21 
110/21 
a/b 
111/22 
111/22 
111/22 
111/22 
a/b 

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