5
CHAPTER 1: Specifications
Network Interface
G.703
Network Rate
2.048 Mbps
Network Connectors
MT245A: One modular RJ-45 connector
(120-ohm); MT246A: Two BNC (75-ohm)
Terminal Interface
MT245A: EIA-530 (RS-422) on DB25 female;
MT246A: CCITT X.21 on DB15 female
Internal Interface
Connection to MicroRack 2, 4, 8, or 16
(RM202, RM204, RM208, or RM216) midplane
architecture chassis via (2) 50-pin male card
edge connectors
Terminal Rate
2.048 Mbps
Diagnostics
Loopback Test
Indicators
LEDs for power, network, master clock, and
loopback test
Clocking
Internal, external (network receive loop)
Fuse
400 mA for 120V applications; 200 mA for 240V
applications
Receiver Sensitivity
-10 dB (0 dB = 2.4V)
Operating Temperature
32° to 140°F (0° to 60°C)
Humidity
0 to 95%, noncondensing
Altitude
Up to 15,000 feet (4570 m)
Power Supply
Rackmount power supply is switchable between
120 and 240 VAC; chassis supplies 10 VAC to
the MT245A/MT246A, typical consumption is
1 watt
Size
3.1"H x 0.95"W x 5.4"D (7.9 x 2.4 x 13.7 cm)
1. Specifications
