TECHNISONIC INDUSTRIES LIMITED
www.til.ca
TAF-550 Installation & Operating Instructions
TiL 96RE187 Rev D
2-9
2.3
TiL-91-DE CUSTOM CONFIGURATION
Custom system configuration for the 91-DE Transceiver includes customizing channel
frequencies. Channels 0 to 9 can be configured for fixed frequency operation including transmit
inhibit on pre-selected channels.
2.3.1
Fixed Channel Frequency Set Up
The following procedure fixes pre-selected channel frequencies and inhibits transmit on receive
only channels. After completion of this procedure the operator will be able select stored channels
only for receive or transmit. Keypad entry of frequencies is disabled.
2.3.2 System
Configuration
(1)
Configure channel frequencies as desired (Refer to Section 3).
(2)
Select channels for Rx only (transmit inhibit) operation (Refer to 91-DE Keypad Operating
Instructions in Section 3).
2.3.3 Transceiver Removal
(1)
Remove TAF-550 Modular Case Cover, the TFM-138B Transceiver then the 91-DE
Transceiver. Refer to paragraph 2.1.1, 2.1.2 and 2.1.3.
2.3.4 Transceiver Disassembly/Assembly and Jumper Installation
(1)
Remove and retain 15 flathead screws securing transceiver top cover to chassis. Refer to
Figure 2.5.
(2)
Position Jumper J6 on pin 1 and pin 2 to disable keyboard entry of frequency selection
and lock operating configuration.
(3)
Position Jumper J6 on pin 2 and pin 3 to enable keypad frequency selection and unlock
operating configuration.
(4)
Position Transceiver Cover on Chassis. Ensure that cover holes are aligned with
threaded inserts.
(5)
Position 15 flathead screws through cover holes into chassis threaded inserts. Tighten
screws with fingers. Tighten screws securing Transceiver Cover to Chassis.
2.3.5 Transceiver Replacement
(1)
Replace 91-DE Transceiver into the TAF-550 Modular case by reversing the steps
outlined in paragraphs 2.1.1, 2.1.2 and 2.1.3.
2.3.6 Operational Check
(1)
Turn 91-DE Transceiver Unit On (Refer to Section 3).
(2)
Recall Channels "0" through "9" (Refer to Section 3). Ensure that the frequencies
indicated for each channel displayed correspond to those selected.
(3)
Transmit on each channel. Observe that the TX Led (Refer to Figure 3-2, for location)
does not light on channels selected to operate exclusively in receive mode.
(4)
Enter a valid frequency (within the frequency range of (117.975 MHz to 138 MHz) that
differs from the frequency stored in channel "0".
(5)
Store the frequency in channel "0" (Refer to paragraph 3.4.5).
(6)
Recall Channel "0" frequency. Channel "0" frequency displayed shall be the same
frequency entered before Locking the operating configuration (ie. different from the
frequency entered in step 4).
(7)
Perform Steps 4 through 6 for each channel.
