1.0 Product
Description
Meridian’s DT&DR-2V2K/2K product series are fiber optic modems that transmit two channels
of uni-directional digitized video and two bi-directional RS-485 (4-wire) data channels over one
optical fiber using digital transmission technologies. This product series uses Meridian’s
standard 2-slot wide chassis mount card assembly and plugs into the following Meridian chassis:
SR-1000/S, SR-1200/S, SR-1500/S, and SR-2001 & SR-2000 series 19” equipment chassis.
The digital modules consist of various plug-in personality function cards or SIMs. The top card
is the optical card that contains the fiber optic interface. The optical output (Tx) connector is
located on the left side of the module while the optical input (Rx) connector is adjacent to it on
the right side of the module. The second SIM contains the two video Input/Output coaxial
interfaces. The bottom SIM card contains the two bi-directional RS-485 data channels.
2.0 Installation
Series DT&DR-2V2K/2K products are two-slot wide cards and, as such, occupy two slots in
Meridian’s standard chassis (SR-1000/S, SR-1200/S, SR-1500/S, and SR-2001 & SR-2000 series
19” equipment chassis). To install in the chassis, orient the card with the Meridian logo at the top
of the module and slide onto the top and bottom card guides in the chassis. Press securely on the
top and bottom of the module to ensure that it is fully seated in the chassis so that the electrical
connector mates with the chassis-mounted motherboard. Once installed, manually tighten the two
thumbscrews located at the top and bottom of the card. Do not use tools to secure these and do
not over tighten.
Note
: A fully loaded subrack should have forced-air cooling to avoid excessive heat generation
inside the chassis. A fan assembly tray (P/N FA-2000) with three (3) fans is available and should
be installed under the 19" SR-2000/1 whenever possible.
3.0 Product Signal Format & Specifications
The DT&DR-2V2K/2K series products transmit and receive the following signals:
Signal Type
Channels
Transmit
Receive
NTSC/PAL video
2
DT-2V2K/2K DR-2V2K/2K
RS-485 (4-wire)
2
Yes
Yes
700 Elmont Rd, Elmont, NY 11003, Tel: 516-285-1000; Fax: 516-285-6300
www.Meridian-tech.com
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