Juniper JX-2T1-RJ48-S データシート

and long build-out diagnostics

Specifications

Product Specifications

Dimensions and Weight (W x H x D)

• 5.45 x 0.63 x 6.5 in (13.8 x 1.6 x 16.5 cm)

Network Interface Specifications

DUAL-PORT T1

DUAL-PORT E1

Transmit bit rate

1.544 Mbps

2.048 Mbps

Receive bit rate

1.544 Mbps

2.048 Mbps

Line encoding

- Alternate mark

inversion (AMI)

- Bipolar with 8-zero

substitution (B8ZS)

- Framed clear channel
- Fractional

- HDB3
- Framed clear channel
- Unframed clear

channel

- Framed fractional

Framing

- Superframe (D4/SF)
- Extended superframe

(ESF)

- G704
- G704 without CRC4
- Unframed

Data Interface

• Clocking Modes: DCE, internal, loop

• Clocking Rates: 1.2 KHz, 2.4 KHz, 9.6 KHz, 19.2 KHz,

38.4 KHz, 56 KHz, 64 KHz, 72 KHz, 125 KHz,
148 KHz, 250 KHz, 500 KHz, 800 KHz, 1 MHz,
1.3 MHz, 2 MHz, 4 MHz, 8 MHz

High-Level Data Link Control (HDLC) Features

• N x 64 Kbps or N x 56 Kbps, non-channelized data rates

(T1:N=1 to 24; E1:n=1 to 31)

• Cyclic redundancy check (CRC) 16/32

• Shared flag

• Idle flag/fill

• Counters: runts, giants, frame check sequence (FCS) error,

abort error, align error

Interface Connector

• RJ-48

System Timing

• Internal (system clock)

• External (network recovered clocks)

Environmental

• Operating temperature: 0° to 40° C

• Storage temperature: -40° to 70° C

• Relative humidity: 5% to 90% noncondensing

Diagnostics

Loopbacks

• Local, remote, payload

Test Patterns (BERT)

• All ones

• All zeros

• Alternating ones and zeros (AA/55)

• 1:3 or 1 in 4 pattern

• 1:7 or 1 in 8 pattern

• 3:24 - 3 bits set in every 24 bits

• QRSS20 (modified PRBS 2^20-1, with 14 zero suppression)

• PRBS 2^7-1

• PRBS 2^9-1 (as specified in ITU-T O.153)

• PRBS 2^11-1 (as specified in ITU-T O.153)/2047 pattern

• PRBS 2^15-1 (as specified in ITU-T O.151/O.153)

• PRBS 2^20-1 (as specified in ITU-T O.153)

• Programmable word or 32-bit programmable pattern

Network Alarms

• Alarm indication signal (AIS)

• Loss of frame (LOF)

• Loss of signal (LOS)

• Yellow (YLW)

Error Counters

• Controlled slipped seconds (CSS or CS)

• Line errored seconds (LES)

• Errored seconds (ES)

• Bursty errored seconds (BES)

• Severely errored seconds (SES)

• Severely errored framing seconds (SEFS)

• LOS seconds

• LOF seconds (LOFS)

• Unavailable seconds (UAS)

LEDs

PIM LEDs indicate port status with the following LED states:

COLOR

STATE

DESCRIPTION

Green

On steadily

Online with no alarms or failures.

Red

On steadily

Active with a local alarm; router has
detected a failure.