375A
Signaling Bit Monitor provides simultaneous display of two DS1 streams
- Displays signaling bits (A-B-C-D) for 24 channels in both directions
- Displays 8-bit data in both direction
- Automatic framing to D4, ESF, or SLC-96®
- Automatic code detection of B8ZS and QRSS (optional)
- Indicators for standard alarms and errors:
- LED history mode holds errors or channel seizures for unattended operation
- Terminated or bridged span connection
Error Monitor Display provides compliance with CCITT G.821
- Dual input jacks for daisy chaining equipment
- Access to all error counts (BPV, CRC, Frame, etc.)
- Access to all error statistics (errored seconds, severely errored seconds, unavailable seconds, etc.)
- Information available as both counts and rates
- 24-hour data history in 15-minute blocks
- RS-232C serial port for remote computer or printer
Audio Channel Monitor allows both sides of a conversation to be checked
- Single- or dual-direction monitoring is selectable
- Displays 8-bit data in both directions for selected channel
- Displays signaling bits for selected channel
- 0 dBm, 600 Ohm TLP VF output jack and local speaker
General
Size: 5.25" high x 17" wide x 7" deep
Weight: Net 11 lbs. Shipping 17lbs.
Temperature range: 0-50 degrees Centigrade
Humidity (max): 85% noncondensing
Power: 110-220 VAC 50-60 Hz @ 1.5 Amps or -48 VDC @ 1.0 Amps (option 375A-01)
Accessories
#9400-0001-02 80 Column Printer with Serial Cable and Buffer Memory
#9400-0004-01 60" 310 Male to 310 Male Cable
#9400-0006-01 60" 310 Male to Bantam Male Cable
#2100-0050-01 96" Serial Interface Cable
Specifications/Line Interface
- Line Format: DS-1 AMI or B8ZS Line Code
- Framing Format: D4 Superframe, Extended Superframe, and SLC-96® with automatic selection
- Input Frequency: 1.544 Mbps ±15 kbps
- Jitter Tolerance: Meets or exceeds CCITT O.171, PUB 41451, PUB 43801, and PUB 62411-1985.
- Input Impedances: Terminated: 100 Ohms or Bridged: >1000 Ohms; front panel selectable
- Input Level: 200 mV to 6 V base-to-peak (-24 to +3 dB DSX)
- Input Connectors: Dual parallel 310-type three-conductor jacks or Optional Rear Panel Access
- Test Patterns: Automatically detects QRSS Framed or Unframed (Option 375A-02)
Signaling Bit Monitor Display Features/LED indicators
- History and Terminate mode
- Line and Framing Format
- Standard Errors and Alarms
- Signaling bits (A-B-C-D)
- 8-bit received channel data
- History Mode: History Mode holds LED status: Front panel selectable.
Error Monitor
- Display Features: 24–character alphanumeric LED display.
- Serial Connector: DB9-F for printer or remote computer
- Serial Protocols: XON/XOFF, RTS/CTS, or DTR/DSR; configurable data, start, stop, and parity format
- Data Format: Asynchronous; selectable baud rate, parity, data bits and stop bits.
Intrinsic Noise: 10 dBrnC (idle code received)
- Channel Selection: Channels 1 to 24 selectable via up/down scroll switches
- Audio Monitoring: Speaker and 0 dBm, 600 Ohm TLP, 310-type, three-conductor jack
- Audio Source: Either side individually or both
- Speaker Control: Volume adjust knob and monitor select/mute source button
- Display Features: 4-bit A-B-C-D signaling data for each direction; two, seven segment numerics for channel ID
Display Features: 4-bit A-B-C-D signaling data for each direction; two, seven segment numerics for channel ID.
