ME375A
ANA
REM
PATT
INTERFACE CONN.
PWR
RTS
TD
RD
DCD
TEST
BLACK BOX
RESET
PATT
REM
ANA
DIG
TEST
DCD
LOS
ERR
RD
TD
RTS
PWR
ASYNC/SYNC 2-WIRE SHORT HAUL MODEM
DIG
ERR LOS
1 2 3 4 5 6 7 8
9
DATA RATE
SELECTION
0 = 600 bps
1 = 1.2 Kbps
2 = 2.4 Kbps
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
POS BAUD
EXT
INT
LBT
CLK SOURCE
DIS
EN
DIS
EN
CHASSIS GND
DIS
CON
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),
REM(remote digital loopback), and PATT (test pattern);
(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.
Diagnostics: V.54--compliant loopback tests:
Local analog loopback (switch- or signal-triggerable);
Local digital loopback (switch-triggerable);
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
LINE
4 5
2
GND
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.
INSERTING WIRE INTO THE CLIPS
