Motorola Gr300 Zr310 Community Repeater 6880902z68 C Manual

 
Section 2 
Installation
 
Fan Installation 
Perform the following steps to reinstall the fan assembly in the repeater housing. Due to a limited amount of space in the 
back of the repeater housing, you must connect the power cable before installing the fan. To free both hands for easier 
installation of the power cable, you may want to rest the fan assembly on top of the repeater housing. 
1. Connect the fan assembly power cable between the bottom connector of the power supply and the fan assembly...

 
Section 2 
Installation 
 
 
 Figure 2-5. Transmit Radio, Rear View 
Locate the cable tie wrap supplied with the GR300.
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
March, 1993  6880902Z68-O  Section 2-4 

 
Section 2 
Installation 
 
 
Figure 2-6. 
 
 
 
 
Section 2-5  6880902Z68-O  March, 1993 

 
Section 2 
Installation 
 
GR300 Housing Kit HLN8391_ 
Item Part Number Description Qty. 
1 None  Fan Assembly  1 
2 1580675B01  Cover  1 
3  0310943M59  Screw, Taptite, M3.5x0.6x6  4 
4  0310907A91  Screw, Machine, M3.5x0.6x8  4 
5 0780676B01  Base Tray  1 
6 6480495C01  Front Plate  1 
7  0310907B08  Screw, Machine, M5x0.8x8  8 
8 03136993  Screw, Machine, 6-32x3/8  4 
  
Table 2-1. Receive Radio Jumper Settings (GM300 16 Channel Models) 
GM300 Jumper R*I*C*K ZR310 ZR320 ZR330 i50R 
JU551 B A B B B...

 
Section 2 
Installation 
 
NOTE 
You will not install the front plate of the repeater 
housing until you have completed all tests and 
adjustments under the heading Tests and Adjustments.
Initial Turn-On 
The following steps describe the process of turning on the ZR310 for the first time. 
1. Remove protective covers from both radios LED displays 
2. Connect the power cable into a 115/230Vac power source 
NOTE 
The 115/230 switch on the bottom of the power 
supply must be in the position corresponding...

 
Section 3 
Operation 
Overview 
Theis section describes the basic operation of the ZR310 Community Repeater Panel. Included is a list of all TPL and DPL tone codes with 
their decoded user numbers. Refer to the programming section of this manual to customize your community repeater. 
Basic Operation 
Installing the ZR310 in the GR300 Repeater Station converts the GR300 Repeater Station into a multi -user community repeater. The ZR310, 
via a microprocessor, performs data management to simultaneously...

 
Section 3 
Operation 
Regenerated TPL/DPL/CSQ 
When you key the transmit radio, depending on the programming, the ZR310 will 
• Encode nothing for carrier squelch  
• Regenerate the received TPL ton or DPL code  
Encode a different TPL tone or DPL code (cross-tone encoding)
 
Carrier Repeat
 
The ZR310 can also be configured as a carrier repeater, or sometimes called an open repeater. In this mode, any activity on the receive 
radio causes the transmit radio to key. 
The ZR310 can also provide tone...

 
Section 3 
Operation 
Reserve Mode 
If the user is in the reserve mode when unkeying, a chirp is sent. This chirp gives a positive indication of active reserve mode. 
Courtesy Tone 
The ZR310 will next check to see if the user requires the courtesy beep. If so, then it sends the beep one second after the transmit radio 
unkeys. The beep frequency can be sent from 400 to 2500 Hz (default setting is 1000 Hz). If the user is a 400 Hz tone just after the GR300 
unkeys, potential failure has been detected....

 
Section 3 
Operation 
Repeater Set-up/Knockdown 
The system operator may remotely enable or disable the ZR310 operation. When in knockdown state, the ZR310 
effectively disables the transmit radio. (Refer to Programming section, DTMF Command Descriptions, System 
Commands, Repeater Set-up/Knockdown.) 
  
 
 
  
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
March, 1993  6880902Z68-O  Section 3-4 

 
Section 4 
Theory of Operation 
Overview 
This section provides the experienced technician with a thorough understanding of the ZR310 circuits and their operation. This information 
will aid the technician in troubleshooting the equipment. 
Circuit Description 
Use this detailed circuit description in conjunction with the schematic diagrams in the back of the manual. 
Microprocessor 
To ensure an orderly power up sequence to microprocessor U1. and its peripheral devices, the active low reset signal is...