Black Box ME375A Quick Start Manual

ME375A
PATT REM ANA DIG
TEST ERR LOS DCD RD
POS BAUD CLK SOURCE
DATA RATE
SELECTION
EXT
0 = 600 bps
INT
1 = 1.2 Kbps
2 = 2.4 Kbps LBT
3 = 4.8 Kbps
4 = 9.6 Kbps
5 = 19.2 Kbps
6 = 38.4 Kbps
7 = 48 Kbps
8 = 56 Kbps
9 = 64 Kbps
A = 128 Kbps
INTERFACE CONN.
TD RTS PWR
Interfaces: ME375 models: 2-wire telco, EIA RS-232;
ME376 models: 2-wire telco, ITU-TSS (CCITT) V.35
Protocols: DTE side: Synchronous or Asynchronous
Line side: 2B1Q encoding
Clock Source: Internal, External (from DTE), or received (from other unit), user-selectable.
Data Format: 7 or 8 data bits; 1 or 2 stop bits; even, odd, or no parity (user-selectable).
Operation: Line side: Full duplex with echo cancellation.
Data Rate: 128, 64, 56, 48, 38.4, 19.2, 9.6, 4.8, 2.4, 1.2, or .6 Kbps.
Transmission Level: Up to 14 dBm.
User Controls: (5) Front-mounted:
(4) Pushbuttons: DIG (local digital loopback), ANA (local analog loopback),
(1) Recessed RESET switch;
(6) Internal Jumpers:
(1) 7-position DIP switch for protocol, data format, and signaling options;
(1) Rotary switch for data rate;
(4) Jumpers for clock source, loopback testing, and ground connection.
CHASSIS GND
Diagnostics: V.54--compliant loopback tests:
DIS
Local analog loopback (switch- or signal-triggerable);
Local digital loopback (switch-triggerable);
CON
Remote digital loopback (switch- or signal-triggerable).
Connectors: ME375 models: (1) RJ-45 female, (1) 3-clip terminal block, and (1) DB25 female;
ME376 models: (1) RJ-45 female, (1) 3-clip terminal block, and (1) 34-pin M-block female.
Power: From internal power supply through included or alternate 5-ft. (1.5m) power cord:
Input: 103.5 to 131.5 VAC, 47 to 63 Hz
Output: 5VA
BLACK BOX
PWR RTS TD RD DCD LOS
REM(remote digital loopback), and PATT (test pattern);
ASYNC/SYNC 2-WIRE SHORT HAUL MODEM
DIG ANA
ERR TEST
INSERTING WIRE INTO THE CLIPS
1. Insert screwdriver into square hole.
2. Raise inserted screwdriver, putting
pressure on the ramp within the square
hole. The wire clamp within the round
hole will open.
3. Insert the stripped end of the wire and
remove the screwdriver.
REM PATT
RESET
LINE
GND
2 4 5