Specifications

TM DRMM4 Rack Mount 1
100 V to
240 V
50/60 Hz
30 W
BLK=GND
WHT =
+12 VDC
(1.5A MAX)
RED =
+5 VDC
(1.5A MAX)
IF IN
RF OUT
POWER
IF OUT
RF IN
POWER
IF OUT
RF IN
POWER
IF IN
RF OUT
POWER
DRMM4
GAIN
DUC550
POWER ERROR
3 5
CATV CATV+100
GAIN
DUC860
POWER ERROR
2 5
2 4
DDC806
SIGNAL
POWER/ ERROR
CATV +100
CATV
BC TV
2 4
DDC806
SIGNAL
POWER/ ERROR
CATV +100
CATV
BC TV
The DRMM4 is a 1RU rack mount carriage with a built-in
power supply. The assembly accepts up to four, 1 unit wide
digital component series modules, such as the DDC806,
DUC550, or DUC860.
TM is a trademark of the R. L. Drake Company
©Copyright 2003 R. L. Drake Co. P/N: 3852379A-1-2003 Printed in the U.S.A.
MODULE INSTALLATION
All modules install through one of the four openings in the front
panel of the DRMM4. Each module is installed with the handle
toward the right-hand side of the DRMM4 unit. Each module
should be secured with #4-40 x 1/2" screws via mounting tabs/
holes at the two rear corners of each module. DC power cable
connections, and any other module-to-module
interconnections, should be made to each module prior to
mounting the DRMM4 system into the rack. Observe proper
polarity of cable connectors.
RACK MOUNTING
Adequate ventilation is very important in multichannel
installations. Units should be spaced apart by at least one panel
height wherever possible, and some air movement is advisable
in enclosed rack cabinets. Excessive heat will shorten
component life and system performance will be degraded
without proper cooling.
The power supply features a universal input voltage switching
power supply with attached 115 VAC line cord and four
separate DC output cables with polarized 3-circuit connectors.
FIGURE 1 - Front Panel View of DRMM4.
Space allows for up to four digital modules (modules not included).
Standoffs (16 total),
located at the four
corners of each module.
DC Power Cables (4 sets) typical.
(Observe proper polarity and maximum ratings.)
AC Cord
FIGURE 2 - Typical Installation with 2 DDC806 modules and a DUC550 or a DUC860
Power Supply Module
SPECIFICATIONS:
GENERAL
Power Requirements: ------------------------------ 100 VAC to 240 VAC
(and -10%/+10% of end limits).
Frequency: ---------------------------------------------------------- 50/60 Hz.
AC Input Power: ------------------------------------------- 30 WATTS max.
Temperature Range: ---------------------------------------- 0
0
to +50
0
C.
Output Voltages: ---------------------- +12 VDC @ 1.5A (WHITE wire),
+5 VDC @ 1.5A (RED wire),
(BLACK wire = Ground).
CONNECTORS
AC Line Cord ----------------- Attached, with North American plug.
(Power supply module is internally fused: 2A, 250V, SLO-BLO,
5x20 mm. Power supply module also employs current sense
limiting protection).
DC Output: -------------------------- Four separate cables with 3-CKT
connector, female, polarized.
MECHANICAL
Dimensions: (WxHxD): --------------------- 19 in. x 1.75 in. x 8.5 in.,
(40.1 cm x 4.4 cm x 21.6 cm).
Weight: ----------------------------------------------------- 2.8 lbs. (1.3 kgs),
(with power supply and no modules installed).
INSTALLATION
Secure modules to the DRMM4 using the supplied #4-40 x 1/2" PAN PHL screws (R. L. Drake part # 3320351) at the two corners of each
module as shown. No screws are required for the front standoffs.
R.L. DRAKE COMPANY
230 INDUSTRIAL DRIVE
FRANKLIN, OHIO 45005 U.S.A.
CUSTOMER SERVICE AND PARTS TELEPHONE: [phone]
TELEFAX: [phone]
WORLD WIDE WEB SITE: http://www.rldrake.com
8" F-F cable
(2 supplied)
RF INRF IN
CATV RF OUT to
output combiner, etc.
CATV RF OUT to
output combiner, etc. 2 Screws