OPERATION
3-9
Revised February 1997
Part No. 001-9750-005
Table 3-2 Menu Mode And Option Switch Functions
FUNCTION
MENU
ITEM
OPTION
SWITCH
SWITCH
LABEL
FUNCTION
MENU
ITEM
OPTION
SWITCH
SWITCH
LABEL
A/D (Scn List Prg)
X
A/D
LTR System Search
X
Auto-Registration
X
Menu Mode Select
X
MENU
Auxiliary 1
X
X
AUX 1
Monitor
X
MON
Auxiliary 2
X
X
AUX 2
Phone Mode Select
X
X
PHONE
Backlight
X
X
BKLHT
Priority
X
X
PRI
Bank Select
X
X
BANK
Radio Tones
X
Call Guard Disable
X
CG
Scan On/Off
X
SCAN
Emergency
X
EMER
Scan List Save
X
Encryption
X
X
ENCPT
Scan Type
X
Ext PA (Mic audio)
X
X
PA-MC
Siren (see Aux 1/2)
X
SIREN
Ext PA (Rx audio)
X
X
PA-RX
Status Select
X
X
STAT
Home Sys/Grp
X
HOME
Talk-Around
X
X
TA
Horn/Light Alert
X
X
HORN
Viewing Angle Adj
X
does not need to be selected). If off-hook detection is
disabled by programming, group scanning is always
enabled if it is programmed. Group scanning is indi-
cated when all the segments of the status display adja-
cent to the group number are on. There is no group
scan indicator when system scanning because rotating
symbols appear in both locations of the status display.
When group scan is occurring, calls are received
on all selectable groups of a system regardless of which
is selected. In addition, the display automatically
changes to the group on which a call is received.
Without group scan, calls are received on only the last
selected group of each system. The group scan list can
be programmed as described in the preceding section.
In addition, the scan resume delay information
described in Section 3.4.3 also applies to group
scanning.
3.4.8 SCANNING THE VARIOUS TYPES OF
SYSTEMS
Scanning Multi-Net and LTR Systems
Group scan programming described in the
preceding section controls whether all groups or only
the last selected group of Multi-Net and LTR systems
are scanned. If fixed priority or block ID codes (see
Section 3.3.4) or Multi-Net ID codes 236 or 237 (see
Table 4-2) are programmed, calls on those ID codes
are received regardless of which group is selected or
group scan programming (if the system is selected or
scanned).
Conventional Systems
Group scan programming also determines
whether calls are received on all groups or only the
last selected group of conventional systems. Call
Guard squelch is detected on the selectable groups of
conventional systems if the monitor mode is not
enabled (see Section 3.9.3). If the monitor mode is
enabled, all calls occurring on a system (channel) are
received.
Priority groups can also be sampled when scan-
ning conventional systems. This feature ensures that
important calls on the priority group or groups are not
missed while listening to calls on non-priority groups.
See Section 3.5.17 for more information.
3.5 OPTION SWITCH AND MENU MODE
FUNCTIONS
3.5.1 INTRODUCTION
This transceiver can be equipped with up to six
option switches. The functions which can be
controlled by these switches are indicated in Table 3-2
by an “X” in the “OPTION SWITCH” column
.
Summary of Contents for Summit DM 975x
Page 105: ...MULTI NET SYSTEM OVERVIEW 5 10 Revised February 1997 Part No 001 9750 005 ...
Page 108: ...CIRCUIT DESCRIPTION 6 3 August 1993 Part No 001 9750 001 Figure 6 1 Transceiver Block Diagram ...
Page 123: ...CIRCUIT DESCRIPTION 6 18 August 1993 Part No 001 9750 001 ...
Page 131: ...SERVICING 7 8 Revised January 1995 Part No 001 9750 003 ...
Page 156: ...9 19 Revised December 2000 Part No 001 9750 007 TRANSCEIVER EXPLODED VIEW PART 1 ...
Page 168: ...Revised January 1995 Part No 001 9750 003 10 11 INTERCONNECT SCHEMATIC ...
Page 169: ...Revised January 1995 Part No 001 9750 003 10 12 DISPLAY BOARD SCHEMATIC ...
Page 171: ...Revised January 1995 Part No 001 9750 003 10 14 RF BOARD SCHEMATIC REVISED 800 MHZ ...
Page 172: ...Revised January 1995 Part No 001 9750 003 10 15 RF BOARD BOARD LAYOUT ALL 800 900 MHZ ...
Page 173: ...Revised January 1995 Part No 001 9750 003 10 16 RF BOARD BOARD SCHEMATIC 900 MHZ ...
Page 174: ...Revised January 1995 Part No 001 9750 003 10 17 RF BOARD BOARD SCHEMATIC UNREVISED 800 MHZ ...
Page 178: ...Revised January 1995 Part No 001 9750 003 10 21 PA BOARD SCHEMATIC 900 MHZ 30W ...
Page 179: ...Revised January 1995 Part No 001 9750 003 10 22 PA BOARD SCHEMATIC 900 MHZ 15W ...
Page 181: ...Revised January 1995 Part No 001 9750 003 10 24 PA BOARD SCHEMATIC UNREVISED 800 MHZ 35W ...
Page 182: ...Revised January 1995 Part No 001 9750 003 10 25 PA BOARD SCHEMATIC UNREVISED 800 MHZ 15W ...
Page 183: ...Revised January 1995 Part No 001 9750 003 10 26 AUDIO LOGIC BOARD SCHEMATIC PART 1 OF 2 ...
Page 184: ...Revised January 1995 Part No 001 9750 003 10 27 AUDIO LOGIC BOARD SCHEMATIC PART 2 OF 2 ...
Page 185: ...Revised January 1995 Part No 001 9750 003 10 28 AUDIO LOGIC BOARD LAYOUT TOP VIEW ...
Page 186: ...Revised January 1995 Part No 001 9750 003 10 29 AUDIO LOGIC BOARD LAYOUT BOTTOM VIEW ...
Page 188: ...Revised January 1995 Part No 001 9750 003 10 31 REMOTE TRANSCEIVER INTERCONNECT SCHEMATIC ...
Page 189: ...Revised January 1995 Part No 001 9750 003 10 32 REMOTE CONTROL UNIT INTERFACE BOARD SCHEMATIC ...
Page 216: ...Part Number 001 9750 007 12 00 hph Printed in U S A ...
