4 of 4
2/26/2007
#11835
724-746-5500
blackbox.com
AC-powered standalone models include a manual and
a detachable power cord; card models include a manual.
The DC-powered MT653A-ST-D48-R3 includes a manual
and a DC power-supply connector kit. You have to
assemble this connector and use it to terminate the DC
power cord that will plug into the Fiber Optic Line Driver.
WHAT‘S INCLUDED
Item
Code
T1 Fiber Optic Line Driver ST, Standalone
820-nm Multimode
MT612A-ST
T1/E1 Fiber Optic Line Driver ST, Standalone
850-nm Multimode
MT651A-ST-R2
1310-nm Single-Mode
MT650A-ST-R3
1310-nm Single-Mode, -48-VDC
MT653A-ST-D48-R3
T3 Fiber Optic Line Driver ST, Standalone
850-nm Multimode
MT619A-ST-R2
1310-nm Single-Mode
MT618A-ST-R3
E3 Fiber Optic Line Driver, Standalone
1310-nm Single-Mode, 230-VAC
MT620AE-R2
T1/E1 Fiber Optic Line Driver ST, Card
850-nm Multimode
MT651C
1310-nm Single-Mode
MT650C-R2
To rackmount your cards, you’ll need…
RackNest 2/14
115-VAC, Single Power Supply
RM110A
115-VAC, Dual Power Supply
RM110A-2PS
230-VAC, Single Power Supply
RM110AE
For optimum performance and a 20% savings, order…
Multimode Duplex Fiber Optic Cable, Riser, ST–ST,
Custom Lengths
EFN110-STST
Single-Mode Duplex Fiber Optic Cable, PVC, ST–ST,
Custom Lengths
EFN5009
T1 Cable, DB15 Male/DB15 Male, Straight-Pinned,
10-ft. (3-m)
ETNMS02-0010
T1 Cable, DB15 Male/RJ-48C Male, Straight-Pinned,
10-ft. (3-m)
ETNMS03-0010
The tables below show the pinouts of the connectors on
the T1/E1 Fiber Optic Line Drivers that carry the T1/E1 and dry-
contact alarm leads. The pinning shown for the T1/E1 signals
on the DB15 connector of the standalone models is widely used,
so if you’re only using these signals, our standard cables should
work.
The pinning of the dry-contact leads is proprietary. Their
arrangement on DB15 is the same as that used by our earlier
standalone fiber optic line drivers (MT610 through MT613),
so if you already have cables built for those, they should still
work. If you need cables incorporating these leads, please call
us for a quote.
Technically Speaking
MT612A-ST
Standalone
Card
Alarm
(on DB15)
(on RackNest’s DB25)
Pins 8 and 7
Pins 10 and 22
Minor alarm (normally closed)
Pins 8 and 15
Pins 10 and 21
Minor alarm (normally open)
Pins 6 and 5
Pins 13 and 25
Major alarm (normally closed)
Pins 6 and 13
Pins 13 and 24
Minor alarm (normally open)
Buyer’s Guide
Dry-contact alarm leads (optional)
Standalone
Card (on RackNest’s
Signal
(on DB15)
5-position terminal block)
N/A
Top terminal
Ground (optional,
attach at one end only!)
Pin 1
Either TX terminal
Send Data Tip (Transmit Data A,
input to fiber optic line driver)
Pin 9
Either TX terminal
Send Data Ring (Transmit Data B,
input to fiber optic line driver)
Pin 3
Either RX terminal
Receive Path Tip (Receive Data A,
output from fiber optic line driver)
Pin 11
Either RX terminal
Receive Path Ring (Receive Data B,
output from fiber optic line driver)
Buyer’s Guide
Balanced T1/E1 leads
