Campbell Manufacturing COM300 ユーザーズマニュアル

Connection to telephone company-provided COIN service
(Central Office ImplemeNted systems) is prohibited. Connection
to party line service is subject to state tariffs.

The COM300 is designed to be used on standard device telephone lines.  The
COM300 connects to the telephone line by means of a USOC RJ11C jack
(standard modular telephone jack).

Connect the cable from the telephone RJ11C jack to the modem as shown in
Figure 2.  If the telephone company has not installed surge protection in the
telephone line (no RJ11C jack), one must install surge protection (Model 6362
or 2372-01) and connect the ring and tip terminal blocks as shown in Figure 3.

TIP

R

IN

G

GND

CAMPBELL
SCIENTIFIC

INC.

MADE IN U

SA

S/N

1002

Complies with Part 68, FCC rules.  FCC Registration No.  B9QUSA-31402-MM-T
Ringer Equivalence 0

.5A.Required C

onnector USOC

 RJ11C. 

This equipment c

omplies with th

e requirements

 in Part 15 of F

CC Rules for C

lass A 

computing device. Operation of this equipment in a residential area may cause
unacceptable interference to radio and TV reception requiring the operator to take 
whatever ste

ps are neces

sary to correc

t the interfere

nce.

VOICE SYNTHESIZ

ER

12V

G

SE
DIFF

G

G

H

L

1

2

1

AG H

L AG H

L AG E1 AG E2 G

3

4

2

5

6

3

SE
DIFF

G

G

H

L

7

8

4

AG H

L AG H

L AG E3 AG G

G

9

10

5

11

12

6

P1 G P2

G C8 C7 C6 C5 C4 C3 C2 C1

G 12V 12V

SDM

5V 5V G

G

SW 12V

SW 12V CTRL

Logan, Utah

G 12V

G 12V

POWER

IN

CR10X WIRING PANEL

MADE IN USA

WIRING

PANEL NO.

EARTH

GROUND

CS I/O

To Earth 

Ground

14 AWG Ground Wire

SC12 Cable

Telephone Wall
Jack