Single stand-alone port for E1 and Fractional E1 networks
- Provides digital access solution for E1 and Fractional E1 network services termination.
- Features user replaceable dataport modules for a number of interface standards; including Ethernet bridge, router, V.35, X.21, RS-530, RS-449, G.703 64Kbps Co-directional and RS-232.
- Supports local control and diagnostics via LCD display. Keypad and LED status indicators are located on the front panel as well as via a menu driven RS-232 console port in conjunction with a standard terminal.
Framed CCS (PCM31) CAS (PCM30) / Unframed CRC4 on/off
16×2 character LCD
|Relative receive level||
0 to -43dB
Nominal 2.37V ±10% for 75ohm
Nominal 3.00V ±10% for 120ohm
According to ITU-T G.823
Clock modes 0-4 Receive, Transmit and Sync
Local loopback,Digital remote loopback, Test pattern
LEDs (Power, TD, RD, Signal loss, Sync loss, Error and test)
ITU-T G.703/G.704/G.706 & G.732
AC: 90-250VAC, DC: 18-72 VCD
250 × 195 × 45 mm (D × W × H)
0 ~ 50°C (Operating), -1 ~ 70°C (Storage)
10 ~ 90% non-condensing
|CT-ETU01A/AC||1U, 19/2", Data port to framed E1 with 100 ~240VAC|
|CT-ETU01A/DC||1U, 19/2", Data port to framed E1 with -48VDC|
|CT-ETU/TTU-X21||X.21 interface module|