2
Clocking:
Internal, external, network
(receive loop)
Network Rate:
2.048 Mbps
Receiver Sensitivity:
-10 dB
(0 dB = 2.4V)
Speed:
Network: 2.048 Mbps;
Terminal: 256 kbps, 512 kbps,
1.024 Mbps, 2.048 Mbps
Diagnostics:
Loopback test
Terminal Interface:
MT240A-R2: EIA RS-530 (RS-422),
X.21, V.35 on HD26 F using
cables (EHN092);
MT241A: X.21 on DB15 F;
MT245A: RS-530 on DB25 F;
MT246A: X.21 on DB15 F
Network Interface:
G.703
Network Connectors:
MT240A-R2,
MT241A: (2) BNC F (75-ohm) and
(1) modular RJ-45 (120-ohm);
MT245A: (1) modular RJ-45
(120-ohm);
MT246A: (2) BNC F (75-ohm)
Indicators:
(5) LEDs: Power,
Network, Master Clock, Loop,
Loopback
Power:
MT240A-R2, MT241A:
230 VAC/50 Hz or 115 VAC/
60 Hz, switch-selectable;
MT245A–MT246A: From the
MicroRACK chassis
Temperature Tolerance:
Operating:
MT240A-R2, MT245A–MT246A:
32 to 140°F (0 to 60°C);
MT241A: 32 to 122°F (0 to 50°C)
Humidity Tolerance:
MT240A-R2,
MT245A–MT246A: 5 to 95%,
noncondensing;
MT241A: 9 to 95%,
noncondensing
Size:
MT240A-R2, MT241A:
7.3"H x 6.6"W x 1.6"D (18.5 x
16.8 x 4.1 cm);
MT245A–MT246A: 3.1"H x
0.95"W x 4.4"D (7.9 x 2.4 x
11.2 cm)
Weight:
Standalone models:
2 lb. (0.9 kg)
Specifications
Ordering Information
ITEM
CODE
Micro NTU G.703
Standalone, AC.................................................MT240A-R2
Card
(Fits the MicroRACK. For product details, request
Product Data
Sheet 12915
.)
120-Ohm................................................................MT245A
75-Ohm..................................................................MT246A
Micro NTU G.703
↔
X.21............................................MT241A
You will need the appropriate cable and an adapter…
Adapter Cable
HD26 Male to DB25 Male..............................EHN092-530
HD26 Male to M/34 Male..............................EHN092-V35
HD26 Male to DB15 Male .........................EHN092-X21M
G.703 75–120 Adapter........................................MT1242A-M
Use the Micro NTU G.703 standalone model to split off a
smaller piece of bandwidth for LAN communications.
LAN
PCs
Bridge/Router
Micro NTUs
(MT240A-R2)
Bridge/Router
LAN
PCs
E1
2.048 Mbps
X.21
X.21
