MDS 05-2708A01, Rev. F
MDS TransNET Ref. Manual
59
9.5 Using the Radio’s Sleep Mode (
Remote Units Only)
In some installations, such as at solar-powered sites, it may be necessary to
keep Remote transceivers’ power consumption to an absolute minimum. This
can be accomplished using the radio’s Sleep Mode feature. Power consump-
tion in the sleep mode will be less at higher voltages and more at lower volt-
ages. Power in the Sleep Mode at 13.6 Vdc is approximately 3 mA.
Sleep Mode can be enabled under RTU control by asserting a ground (or
EIA/RS-232 low) on Pin 4 of the radio’s
DATA
connector. All normal func-
tions are suspended until it is awakened. The radio stays in Sleep Mode until
a built-in one-minute timer “awakens” it for resynchronization, or the low is
removed from Pin 4.
When Pin 4 is opened (or an EIA/RS-232 high is asserted), the radio will be
ready to receive data within 75 milliseconds or less. The radio can be awak-
ened more often if desired, by your RTU.
NOTE:
The
SLEEP
function must be set to
ON
; without this, a ground on Pin 4 will be
ignored.
Table 23. Configuration Parameters for SAF Services
Remote Radio(s)
Parameter
Command
Description
Operating Mode
MODE R
Sets the radio to serve
as a Remote station.
Network Address
ADDR
A number between 1
and 65,000 that will
serve as a common
network address or
name.
Same number for all
units in the same net-
work.
Primary Extended
Address
XPRI
XADDR number of the
primary or preferred
radio with which this
radio will synchronize.
Extension Map
XMAP
Lists all XADDR val-
ues with which this ra-
dio can synchronize,
excluding the
XPRI
address.
Extension
Received Signal
Strength Indicator
XRSSI
The minimum RSSI
level required to pre-
serve synchronization
with a non-primary ra-
dio. (Ineffective when
XPRI
is
NONE
)
