Nortel Networks 553-3001-211 manual Signal duration on the 18-pair faceplate, S5 E38 S6 D1 Unit

Option settings

Page 147 of 894

QPC551 Radio Paging Trunk card

Signal duration on the 18-pair faceplate

S1 (F33)

1

2

3

4

5

6

Binary value (.1 second)

1

2

4

8

16

32

Note: This switch determines the length of time a signal stays on the 18-pair data bus. The time

is set in binary to the nearest tenth second. For example, to keep data on the bus for 5 seconds,

the switch settings total 50 by closing S1.2, S1.5, and S1.6.

Signal duration and pause time

S2 (G33)

1

2

3

4

5

6

7

Binary value (.1 second)

1

2

4

8

16

32

64

Note: This switch determines the time data must stay on the 18-pair data bus plus the pause

time between the removal of data and the reappearance of subsequent data. The time is set in

binary to the nearest tenth second. For example, to keep data on the bus for 5 seconds and have

a pause time of 3.2 seconds, the switch settings should total 82 by closing S2.2, S2.5, and S2.7.

Application

S3 (E2) S4 (F2)

Unit 0, Unit 1

1

2

Address

3

4

5

6

Address

3

4

5

6

Paging

0

off

off

off

off

8

off

off

off

on

single

on

1

on

off

off

off

9

on

off

off

on

multiple

off

2

off

on

off

off

10

off

on

off

on

3

on

on

off

off

11

on

on

off

on

Timer*

4

on

off

on

off

12

on

off

on

on

enabled

on

5

on

on

on

off

13

on

off

on

on

disabled

off

6

off

on

on

off

14

off

on

on

on

7

on

on

on

off

15

on

on

on

on

* When enabled, this switch prevents a signal from being sent from a paging unit until 5 seconds have

elapsed since the beginning of the previous signal on that same unit.

S5 (E38)

S6 (D1)

Unit 0

Unit 1

Impedance termination

1

Real

on

Complex

off

Circuit Card Description and Installation