887170

The 887170 has 32 pairs of voice compression engines that will accept input directly from voice, SRU, BRI or WAN cards. The sum of compression rates for each engine must equal 64Kbps. Selectable compression rates include 40, 32 or 24Kbps with the latter not supporting DTMF, FAX or modem tones (see data sheet for full specification). The 24Kbps option can transport SRU data up to 19.2Kbps. This model supports 1:1 or 1:2 redundancy. Maximum of 2 active 887170 ADPCM servers (plus 1 redundant) per IMACS. If CPU load is 5.x or 6.x.y, it can support 3 active ADPCM server cards. ADPCM coding to G.721/726 with transition signaling to ANSI T1.302 - 1989. CE marked. Requires v3.6.x or higher, 4.x.y, 5.x.y or 6.x.y CPU firmware and cross connect CPU (880160, 880260, 880360/61 or 880370).

• Availability: Pre-Order
• Model: ADPCM server card, supports 40, 32 or 24Kbps ADPCM, CE marked