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MH89790
MH89790 - Brand New MITEL IC Chips
Credit Card - One-month free return and one year warranty.
- Full or Partial Refund, if the item is not as described
- Full Refund if you don't receive your order
Description
The MH89790B is Mitel’s CEPT PCM 30 interface solution, designed to meet the
latest CCITT standards PCM 30 format with CRC-4. The MH89790B provides a
complete interface between a 2.048 Mbit/sec digital trunk and Mitel’s Serial
Telecom Bus, the ST-BUS.
The MH89790B is a pin-compatible enhancement of the MH89790, permitting the
removal of the tuneable inductor and inclusion of the external NAND gate used
for generating RxD.
Features
• Complete primary rate 2048 kbit/s CEPT transceiver with CRC-4 option
• Selectable HDB3 or AMI line code
• Two frame elastic buffer with 32µs jitter buffer
• Tx and Rx frame and multiframe synchroniza-tion signals
• Frame alignment and CRC error counters
• Insertion and detection of A, B, C, D signalling bits with optional debounce
• Line driver and receiver
• Per channel, overall, and remote loop around
• Digital phase detector between E1 line and ST-BUS
• ST-BUS compatible
• Pin compatible with the MH89790
• Inductorless clock recovery
• Loss of Signal (LOS) indication
• Available in standard, narrow and surface mount formats
• Supports single supply rail operation
Applications
• Primary rate ISDN network nodes
• Multiplexing equipment
• Private network: PBX to PBX links
Shipping
| First item | Additional item | Service | Description |
|---|---|---|---|
| $0.00 | Free | Free Shipping | Estimated 15-30 business days via Registered Air Mail or others |
| $27.50 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
| $0.00 | Free | Buyer cooperating carrier | Using buyer's cooperating carrier. Buyer should create a shipping label and share it to us. And then we will call carrier for pickup |
| $38.00 | Free | Expedited Shipping | Estimated delivery time is 3-5 business days, with some areas possibly taking 6-9 business days depending on the shipping address. The main courier companies include but are not limited to UPS, DHL, and FedEx. |
Delivery
- The transportation time may be delayed due to customs clearance, local holidays or abnormal events.
- The estimated time is based on the fastest speed provided by commercial couriers (DHL, FedEx, UPS etc).
- The estimated time does not include the lead time of the item. The lead time of most items is 2–5 business days. If more than 5 working days are needed, we will manually confirm with you.
| Flag | Country | Express Delivery | Standard Delivery |
|---|---|---|---|
 | United States | 3 - 5 days | 10-15 days |
 | Canada | 3 - 5 days | 10-20 days |
 | Mexico | 3 - 5 days | 10-17 days |
 | Germany | 3 - 5 days | 10-12 days |
 | Italy | 3 - 5 days | 10-15 days |
 | United Kingdom | 3 - 5 days | 10-12 days |
Estimated Delivery
This item requires 2-5 business days for processing before shipping after payment is confirmed. And depending on the destination and shipping method.
Return Policy
| Return window | Refund type | Return shipping |
|---|---|---|
| 60 days after receiving item | Money Back or Replacement | Buyer pays for return shipping |
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