TC8734E
4-24 Channel 4-Wire E&M Channel Bank
Features
The TC8734E is a 4-24 channel, 2/4-wire E&M channel bank unit that utilizes a single T1/E1. With four ports per TC8734 card, up to six can be combined to form a 24-channel channel bank. It allows network managers the flexibility of leveraging their existing T1/E1 circuits by adding low-cost two-wire or four-wire E&M circuits as needed. It is economical, simple to install, and comes standard built-in power redundancy.
- Channel Bank Replacement
- 4-24 Channel 600 Ohm Analog & Dry Contact
- 2-Wire or 4-Wire Analog
- Dry contact detectors with Isolated Ground
- Compatible with most standard channel banks
- T1/E1 Status LEDs: BPV, LOS, SYNC, RAI, AIS, CRC
- ESF and SF Framing Support for T1
- PCM30 and PCM30C Framing Support for E1
- Power Redundancy Standard
- 1U Rack Mount Chassis
- 12VDC, 24VDC, -48VDC, 125VDC
- “R2” Push Button for Troubleshooting
- Standard 5-year warranty
Each TC8734E utilizes four DB9 ports for 600 Ohm analog and dry contact interfaces. It also features diagnostic DIP switches for Local Loopback. No additional equipment is required for T1/E1 line and device verification.
The TC8734E is placed into the TCRM19H 1U rack, which can hold up to two TC8734E cards. If two cards are fitted to the rack, then they may be configured in two ways:
- Individual Operation: Each card operates independently withing the 1U chassis and connects to its own T1/E1 connection
- Daisy-chain Operation: Each card operates is connected to the next so that both cards can utilize the T1/E1 connection. (See Applications for more details.)
Applications
The TC3847E is designed as a modern version of an industry-standard channel bank. The industry-standard signaling allows users to use the TC3847E for new systems or for replacement of existing end-of-life channel banks.
Common applications for the TC3847E are two-way radio, including voted and simulcast systems—as well. As with all TC Communications products, the JumboBank™ is mission-critical and is available in standard or extended temperature (-40° C to 80° C) operation.
Multi-Card Operation:
The TC8734E is placed into the TCRM19H 1U rack, which can hold up to two TC8734E cards. If two cards are fitted to the rack, then they may be configured in two ways:
1. The cards are configured for individual operation
Here, each card operates independently and connects to its own T1/E1 connection.
2. Daisy-chain operation
With daisy chain operation, each card is connected to the next so that both cards utilize the T1/E1 connection.
Daisy chaining these together means an eight-port 2/4-wire E&M module is connected utilizing the same T1. An internal rack connection means only inter-rack connections are required.
If required, multiple 1U racks can be daisy-chained together to build up to a 24-channel unit, all using the same T1/E1.
Specifications
- T1/E11 Port
- 600 Ohm (2/4 Wire)4 Ports
- Dry Contact4 Ports
- 600Ω Analog Interface
- Impedance600Ω
- Max Input3Vp-p
- Frequency band300 to 3400Hz
- ConnectorDB9
- Dry Contact Interface
- Normal openStandard
- Normal closeOptional
- Load Voltage (peak AC)60V
- Load Voltage (DC)60V
- Continuous load current0.55A
- Peak load current1.2A
- Max On Resistance2.5Ω
- Output Capacitance150pF
- ConnectorDB9 Visual Indicators
- Channel StatusTX/RX or RLY/DET
- SystemPWR A, PWR B, Vcc, ALM
- T1/E1AMI, RAI, AIS, CRC, BPV, LOS, SYNC
- Bit Error Rates1 in 109 or better
- Dry ContactNormalOpen/Closed
- Standard12VDC @200mA
- Optional24VDC, -48VDC, 125VDC, or 115/230VAC
- Standard-10°C to 50°C
- Hi-Temp (optional)-20°C to 70°C
- Extreme (optional)-40°C to 80°C
- Temperature-40°C to 90°C
- Humidity95% non-condensing
- Height(3.53cm) 1.40"
- Width(18.14cm) 7.20"
- Depth(24.89cm) 9.80"
- Weight(453g) 1.0lbs