Vertex Standard VX-5500L Service Manual page 10

DSUB 25-P
Pin 1: RSSI
[Analog Output]
A DC voltage proportional to the strength of the
signal currently being received (Receiver Signal
Strength Indicator) is provided on this pin. This
low impedance output is generated by the receiver
IF sub-system and buffered by an internal op-
amp. Typical voltages are graphed as follows:
5.0
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
1259 398 125 398 12.5
Pin 2, 3, 4, 5 & 6: SELECT, DSUB 03, DSUB 04, DSUB
05 & DSUB 06
These input port features can be programmed via
the CE49 programmer. The same item can not be
chosen twice.
To select the "Input port" page, (Common
DSUB-25 Input port).
Pin 2
Pin 4
Pin 6
LOGIC level (+5V / 0V) input (Low active).
High Impedance input.
IN
4 1.25 0.4 0.125 0.04
SSG Input Level (uV)
[Digital Input Port]
Pin 3
Pin 5
Operating Manual Reprint
A C
CCESSORY
None
MON
DIMMERLCD illumination dimmer "on."
Hook
SCAN
G-SCAN Activates the Group scanner.
RPT INH Disables the repeater feature during
EMG
Home
CH SW0 Memory channel recall
CH SW1 Memory channel recall
CH SW2 Memory channel recall
CH SW3 Memory channel recall
Example
If you assign "CH SW0" and "CH SW1" to the
Universal Input Port, you can recall Channels 1~3
as shown below.
Channel
1
2
3
ONNECTOR
DSUB 25-Pin Numbering
This feature is the same as pressing and
holding in the Monitor key.
Activates the Hook1 feature.
Activates the scanner.
Multi Deck operation.
Activates the Emergency feature.
Switches to the Home Channel.
(Channel Switch Table bit 0)
(Channel Switch Table bit 1)
(Channel Switch Table bit 2)
(Channel Switch Table bit 3)
CH SW0 CH SW1
1 0
0 1
1 1
1-9