4-wire AUTOVON sets on C*NET
By Rick Walsh, ; posted December 11, 2013; hits 2459
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| Pulsecom BB24 "D4" T1 channel bank associated with Asterisk PC. Note 4EM card on extender. This 4-wire E&M channel card is for the AUTOVON set(s) and interfaces directly to the 255A KTU with T,R,T1,R1,E, and M leads. Power supply module is pulled out as unit is run from -48v battery plant. Other channels provide inbound and outbound trunks for the 200-line 701A SXS switch. |