Instruction manual
Optional Equipment Installation
025-9416 111
MF Format Tone Pair Frequencies
Coded Digit Name MF Format Tones DTMF Format Tones
* --- NO TONE 941, 1209
0 --- NO TONE 941, 1336
# --- NO TONE 941, 1477
A 0 1300, 1500 697, 1633
B KP 1100, 1700 770, 1633
C ST 1500, 1700 852, 1633
D ST1 900, 1700 941, 1633
E ST2 1300, 1700 NO TONE
F ST3 700, 1700 NO TONE
Installation
Follow the steps below to install this option onto a dual trunk card (either 702-9361 or 702-9488)
of the Model 640:
q
1. Power-down the paging terminal.
q
2. Remove the top cover.
q
3. Unscrew the card guide from the back of the chassis for the dual trunk that the MF
decoder is to be installed onto. Pull the dual trunk from its connectors.
q
4. Mount the supplied standoff as shown in Figure 59.
P2
P1
standoff
mount
MF Board
(Part No. 702-9197)
Dual Trunk Card
(Part No. 702-9361)
P3
Figure 59. Multifrequency Board Installation
q
5. Install the multifrequency board onto the 34-pin male connector (J5) on the dual
trunk. The board should extend toward the front of the dual trunk board. Bolt the MF
board to the standoff installed in Step 4.
q
6. Reinstall the dual trunk card in the Model 640 chassis and secure the card guide to
the chassis.