Black Box MULTIPOINT LINE DRIVER - Manual (Page 5)

5 of 6 5/2/2007
#11220
Special circuitry within the driver lets it work with any
DTE that can be polled, regardless of the DTE’s RTS support,
so you get total compatibility with your DTE hardware.
The RS-232/RS-485 Multipoint Line Driver can be jumpered
for a user-selectable port timeout. After the last character
is sent from one of the ports and a specified period of time
passes, the line driver disables any transmission from that port.
This way, a single port won’t monopolize your network.
724-746-5500 blackbox.com
You can order the RS-232/RS-485 Multipoint Line Driver
in standalone 115-VAC (ME836A-R5), standalone 230-VAC
(ME836AE-R3), and rackmount card (ME836C-R5) versions.
Cables are included with the 115-VAC standalone model
and the rackmount card model.
TECH SPECS
All Models:
Protocol: Asynchronous
Microdriver 9
(ME790A-M, ME790A-F, ME792A-MSP, ME792A-FSP, ME794A-M,
ME1794A-F, ME1791A-F)
Distance (Maximum) — 24 AWG: 17 mi. (27.4 km) at 1200 bps
Operation — 4-wire full-duplex, point-to-point
Speed (Maximum) — 19.2 kbps
Interface — RS-232
Connectors —
ME790A-M, ME792A-MSP: (1) DB9 M, (1) RJ-11 F;
ME790A-F, ME792A-FSP: (1) DB9 F, (1) RJ-11 F;
ME794A-M: (1) DB9 M, (1) RJ-45 F;
ME1794A-F: (1) DB9 F, (1) RJ-45 F;
ME1791A-F: (1) DB9 F, (1) 5-screw terminal block
Power — From the RS-232 interface
Size — 1.2"H x 0.75"W x 2.5"D (3 x 1.9 x 6.4 cm)
Weight — 0.6 lb. (0.3 kg)
SHM-B 2W-A
(ME755A, ME755AE, ME755-C)
Distance (Maximum) — 24 AWG: 2.3 mi. (3.7 km) at 2400 bps
Operation — 2-wire full-duplex, point-to-point
Speed (Maximum) — 19.2 kbps
Interface — RS-232
Connectors — (1) DB25 F, (1) 2-screw terminal block
Power —
ME755A: External 115 VAC, 60 Hz;
ME755AE: External 230 VAC, 50 Hz;
ME755-C: From the ME810 or RM007 rack
Size — Standalone: 1.5"H x 4.3"W x 4.5"D (3.8 x 10.9 x 11.4 cm)
Weight — Standalone: 1.3 lb. (0.6 kg)
SHM-B Async
(ME800A, ME800A-R3, ME800AE-CABPAK, ME805-C, ME805C-R3)
Distance (Maximum) — 24 AWG: 4 mi. (6.4 km) at 2400 bps
Operation — 4-wire full-duplex, point-to-point
Speed (Maximum) — 19.2 kbps
Interface — RS-232
Connectors — (1) DB25 F, (1) 4-screw terminal block
Power — ME800A, ME800A-R3: External 115 VAC, 60 Hz ± 10%, 5 watts;
ME800AE-CABPAK: Primary: 230 VAC ±10%, 50–60 Hz;
Secondary: 17 VAC, 700 mA;
ME805-C, ME805C-R3: From the ME810 or RM007 rack
Size — Standalone: 1.5"H x 4.3"W x 4.5"D (3.8 x 10.9 x 11.4 cm)
Weight — Standalone: 1.3 lb. (0.6 kg)
High-Speed SHM-B Async (ME802A, ME802A-R3, ME802C)
Distance (Maximum) — 24 AWG: 4 mi. (6.4 km) at 2400 bps
Operation — 4-wire full-duplex, point-to-point
Speed (Maximum) — 115.2 kbps
Interface — RS-232
Connectors — (1) DB25 F, (1) 4-screw terminal block
Power — ME802A, ME802A-R3: External 115 VAC, 60 Hz;
ME802C: From the ME810 or RM007 rack
Size — Standalone: 1.5"H x 4.4"W x 4.1"D (3.8 x 11.2 x 10.4 cm)
Weight — Standalone: 2 lb. (0.9 kg)
RS-232/RS-485 Multipoint Line Driver (ME836A-R5, ME836AE-R3,
ME836C-R5)
Distance (Maximum) — 24 AWG: 4 mi. (6.4 km) at 1200 bps
Operation — 4-wire full-duplex, 2-wire half-duplex, point-to-point
or multipoint
Speed (Maximum) — 64 kbps
Interface — RS-232 or RS-485
Connectors — (1) DB25 F, (1) 4-screw terminal block (RS-485)
Power — ME836A-R5: External 115 VAC, 60 Hz;
ME836AE-R3: External 230 VAC, 50 Hz;
ME836C-R5: From the RM005 rack
Size — Standalone: 1.8"H x 5.5"W x 8.5"D (4.6 x 14 x 21.6 cm)
Weight — Standalone: 1.8 lb. (0.8 kg)
ME790A-M