Option settings Page 149 of 906
Circuit Card Description and Installation
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 3456
Paging 0off off off off 8off off off on
single on 1on off off off 9on off off on
multiple off 2off on off off 10 off on off on
3on on off off 11 on on off on
Timer* 4on off on off 12 on off on on
enabled on 5on on on off 13 on off on on
disabled off 6off on on off 14 off on on on
7on 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)
Unit 0
S6 (D1)
Unit 1
Impedance termination 1
Real on
Complex off