NEC 2000 IVS manual Switch Setting Function Check Name Number Position, Sens

PN-BRTA (BRI)

(3) Switch Settings

Switch Settings on the PN-BRTA (BRI) Card

SWITCH

SWITCH

SETTING

FUNCTION

CHECK

NAME

NUMBER

POSITION

SENS

4 - F

Set the switch to match the AP Number (04 - 15) as set by CM05.

(Rotary SW)

0

AP NO.

04

05

06

07

08

09

10

11

12

13

14

15

SW NO.

4

5

6

7

8

9

A

B

C

D

E

F

Note 1

0 - 3

Not used

MB (Toggle SW)

UP

For make-busy

ON

DOWN

For normal operation

Note 2

SW0 (Dip SW)

1

ON

For normal operation (BRI mode)

OFF

Not used

ON

1

2 3

4

ON

Clock signal from a master office is sent to the PLO of

2

MP card according to the switch setting of SW0-3.

Note 3

OFF

Clock signal from a master office is not sent to the PLO

of MP card.

3

ON

Clock signal is sent to PLO 0 of MP card.

Note 3

OFF

Clock signal is sent to PLO 1 of MP card.

4

ON

For normal operation

OFF

Not used

SW1 (Dip SW)

ON

For terminating the transmitting side of channels B1 and

B2 with 100 ohms.

1

ON

1

2

To remove the terminating resistor on the transmitting

OFF

side of channels B1 and B2.

ON

For terminating the receiving side of channels B1 and B2

with 100 ohms.

2

OFF

To remove the terminating resistor on the receiving side

of channels B1 and B2.

The figure in the SWITCH NAME column and the position in in the SETTING POSITION col- umn indicate the standard setting of the switch. When the switch is not set as shown by the figure and , the setting of the switch varies with the system concerned.

Note 1: Set the groove on the switch knob to the desired switch position.

Note 2: When the power is on, set the MB switch to ON (UP position) before plugging/unplugging the circuit card.

CHAPTER 4 ND-45504 (E)

Page 64

Revision 2.0