产品名称：BLACK BOX ME659A-M-R2
型号：ME659A-M-R2
品牌：BLACK BOX
描述：
Speeds up to 38.4 kbps.
Distances up to 12 miles (19.3 km).
Async or sync operation, point-to-point or multipoint.
规格：
Nonpowered, so you can install it where it's most convenient.
Supports RJ-45, RJ-11, and terminal block connecti***.
Internal, external, or receive loopback clocking in sync mode.
V.54 loopback and V.52 BERT pattern generator.
Built-in LEDs enable you to monitor test mode operation.
Transformer isolation and surge protection guard against data loss.
Automatic line equalization.
The Universal Sync/Async Short-Haul Modem gives you the flexibility to use it in almost any UTP or STP application. It's non-powered to you can use it almost anywhere without worrying about power. It provides data rates up to 38.4 Kbps and distances up to 12 miles (19.3 km.). In synchronous mode, the SHM supports internal, external, or receive loopback clocking.
The SHM incorporates two V.54 and two V.52 BER test modes, which can be activated via the RS-232 interface. Monitor test mode operation via the built-in LEDs. The SHM also has transformer isolation and surge protection to guard against data loss. It's designed to plug directly into the RS-232 interface. The UTP or STP cable is connected via RJ-11, RJ-45, or a terminal block.
NOTE: Must be used in pairs.